diff --git a/services/inputflinger/InputListener.cpp b/services/inputflinger/InputListener.cpp
index 4b1f350..33b3e1e 100644
--- a/services/inputflinger/InputListener.cpp
+++ b/services/inputflinger/InputListener.cpp
@@ -50,9 +50,10 @@
 
 // --- NotifyKeyArgs ---
 
-NotifyKeyArgs::NotifyKeyArgs(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                             int32_t displayId, uint32_t policyFlags, int32_t action, int32_t flags,
-                             int32_t keyCode, int32_t scanCode, int32_t metaState, nsecs_t downTime)
+NotifyKeyArgs::NotifyKeyArgs(int32_t id, nsecs_t eventTime, nsecs_t readTime, int32_t deviceId,
+                             uint32_t source, int32_t displayId, uint32_t policyFlags,
+                             int32_t action, int32_t flags, int32_t keyCode, int32_t scanCode,
+                             int32_t metaState, nsecs_t downTime)
       : NotifyArgs(id, eventTime),
         deviceId(deviceId),
         source(source),
@@ -63,7 +64,8 @@
         keyCode(keyCode),
         scanCode(scanCode),
         metaState(metaState),
-        downTime(downTime) {}
+        downTime(downTime),
+        readTime(readTime) {}
 
 NotifyKeyArgs::NotifyKeyArgs(const NotifyKeyArgs& other)
       : NotifyArgs(other.id, other.eventTime),
@@ -76,13 +78,15 @@
         keyCode(other.keyCode),
         scanCode(other.scanCode),
         metaState(other.metaState),
-        downTime(other.downTime) {}
+        downTime(other.downTime),
+        readTime(other.readTime) {}
 
 bool NotifyKeyArgs::operator==(const NotifyKeyArgs& rhs) const {
-    return id == rhs.id && eventTime == rhs.eventTime && deviceId == rhs.deviceId &&
-            source == rhs.source && displayId == rhs.displayId && policyFlags == rhs.policyFlags &&
-            action == rhs.action && flags == rhs.flags && keyCode == rhs.keyCode &&
-            scanCode == rhs.scanCode && metaState == rhs.metaState && downTime == rhs.downTime;
+    return id == rhs.id && eventTime == rhs.eventTime && readTime == rhs.readTime &&
+            deviceId == rhs.deviceId && source == rhs.source && displayId == rhs.displayId &&
+            policyFlags == rhs.policyFlags && action == rhs.action && flags == rhs.flags &&
+            keyCode == rhs.keyCode && scanCode == rhs.scanCode && metaState == rhs.metaState &&
+            downTime == rhs.downTime;
 }
 
 void NotifyKeyArgs::notify(const sp<InputListenerInterface>& listener) const {
@@ -91,16 +95,14 @@
 
 // --- NotifyMotionArgs ---
 
-NotifyMotionArgs::NotifyMotionArgs(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                                   int32_t displayId, uint32_t policyFlags, int32_t action,
-                                   int32_t actionButton, int32_t flags, int32_t metaState,
-                                   int32_t buttonState, MotionClassification classification,
-                                   int32_t edgeFlags, uint32_t pointerCount,
-                                   const PointerProperties* pointerProperties,
-                                   const PointerCoords* pointerCoords, float xPrecision,
-                                   float yPrecision, float xCursorPosition, float yCursorPosition,
-                                   nsecs_t downTime,
-                                   const std::vector<TouchVideoFrame>& videoFrames)
+NotifyMotionArgs::NotifyMotionArgs(
+        int32_t id, nsecs_t eventTime, nsecs_t readTime, int32_t deviceId, uint32_t source,
+        int32_t displayId, uint32_t policyFlags, int32_t action, int32_t actionButton,
+        int32_t flags, int32_t metaState, int32_t buttonState, MotionClassification classification,
+        int32_t edgeFlags, uint32_t pointerCount, const PointerProperties* pointerProperties,
+        const PointerCoords* pointerCoords, float xPrecision, float yPrecision,
+        float xCursorPosition, float yCursorPosition, nsecs_t downTime,
+        const std::vector<TouchVideoFrame>& videoFrames)
       : NotifyArgs(id, eventTime),
         deviceId(deviceId),
         source(source),
@@ -119,6 +121,7 @@
         xCursorPosition(xCursorPosition),
         yCursorPosition(yCursorPosition),
         downTime(downTime),
+        readTime(readTime),
         videoFrames(videoFrames) {
     for (uint32_t i = 0; i < pointerCount; i++) {
         this->pointerProperties[i].copyFrom(pointerProperties[i]);
@@ -145,6 +148,7 @@
         xCursorPosition(other.xCursorPosition),
         yCursorPosition(other.yCursorPosition),
         downTime(other.downTime),
+        readTime(other.readTime),
         videoFrames(other.videoFrames) {
     for (uint32_t i = 0; i < pointerCount; i++) {
         pointerProperties[i].copyFrom(other.pointerProperties[i]);
@@ -157,11 +161,12 @@
 }
 
 bool NotifyMotionArgs::operator==(const NotifyMotionArgs& rhs) const {
-    bool equal = id == rhs.id && eventTime == rhs.eventTime && deviceId == rhs.deviceId &&
-            source == rhs.source && displayId == rhs.displayId && policyFlags == rhs.policyFlags &&
-            action == rhs.action && actionButton == rhs.actionButton && flags == rhs.flags &&
-            metaState == rhs.metaState && buttonState == rhs.buttonState &&
-            classification == rhs.classification && edgeFlags == rhs.edgeFlags &&
+    bool equal = id == rhs.id && eventTime == rhs.eventTime && readTime == rhs.readTime &&
+            deviceId == rhs.deviceId && source == rhs.source && displayId == rhs.displayId &&
+            policyFlags == rhs.policyFlags && action == rhs.action &&
+            actionButton == rhs.actionButton && flags == rhs.flags && metaState == rhs.metaState &&
+            buttonState == rhs.buttonState && classification == rhs.classification &&
+            edgeFlags == rhs.edgeFlags &&
             pointerCount == rhs.pointerCount
             // PointerProperties and PointerCoords are compared separately below
             && xPrecision == rhs.xPrecision && yPrecision == rhs.yPrecision &&
diff --git a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
index d6b7259..182736f 100644
--- a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
+++ b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
@@ -249,8 +249,9 @@
 
     const nsecs_t currentTime = now();
     // Define a valid motion event.
-    NotifyMotionArgs args(/* id */ 0, currentTime, DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
-                          ADISPLAY_ID_DEFAULT, POLICY_FLAG_PASS_TO_USER, AMOTION_EVENT_ACTION_DOWN,
+    NotifyMotionArgs args(/* id */ 0, currentTime, currentTime, DEVICE_ID,
+                          AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT, POLICY_FLAG_PASS_TO_USER,
+                          AMOTION_EVENT_ACTION_DOWN,
                           /* actionButton */ 0, /* flags */ 0, AMETA_NONE, /* buttonState */ 0,
                           MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
                           pointerProperties, pointerCoords,
diff --git a/services/inputflinger/include/InputListener.h b/services/inputflinger/include/InputListener.h
index 094bc0c..4b7d26d 100644
--- a/services/inputflinger/include/InputListener.h
+++ b/services/inputflinger/include/InputListener.h
@@ -73,12 +73,14 @@
     int32_t scanCode;
     int32_t metaState;
     nsecs_t downTime;
+    nsecs_t readTime;
 
     inline NotifyKeyArgs() { }
 
-    NotifyKeyArgs(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                  int32_t displayId, uint32_t policyFlags, int32_t action, int32_t flags,
-                  int32_t keyCode, int32_t scanCode, int32_t metaState, nsecs_t downTime);
+    NotifyKeyArgs(int32_t id, nsecs_t eventTime, nsecs_t readTime, int32_t deviceId,
+                  uint32_t source, int32_t displayId, uint32_t policyFlags, int32_t action,
+                  int32_t flags, int32_t keyCode, int32_t scanCode, int32_t metaState,
+                  nsecs_t downTime);
 
     bool operator==(const NotifyKeyArgs& rhs) const;
 
@@ -120,13 +122,14 @@
     float xCursorPosition;
     float yCursorPosition;
     nsecs_t downTime;
+    nsecs_t readTime;
     std::vector<TouchVideoFrame> videoFrames;
 
     inline NotifyMotionArgs() { }
 
-    NotifyMotionArgs(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                     int32_t displayId, uint32_t policyFlags, int32_t action, int32_t actionButton,
-                     int32_t flags, int32_t metaState, int32_t buttonState,
+    NotifyMotionArgs(int32_t id, nsecs_t eventTime, nsecs_t readTime, int32_t deviceId,
+                     uint32_t source, int32_t displayId, uint32_t policyFlags, int32_t action,
+                     int32_t actionButton, int32_t flags, int32_t metaState, int32_t buttonState,
                      MotionClassification classification, int32_t edgeFlags, uint32_t pointerCount,
                      const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
                      float xPrecision, float yPrecision, float xCursorPosition,
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index 8f8c051..265dfb7 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -1280,6 +1280,7 @@
                     for (size_t i = 0; i < count; i++) {
                         struct input_event& iev = readBuffer[i];
                         event->when = processEventTimestamp(iev);
+                        event->readTime = systemTime(SYSTEM_TIME_MONOTONIC);
                         event->deviceId = deviceId;
                         event->type = iev.type;
                         event->code = iev.code;
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index 574f651..d4d14b1 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -492,8 +492,8 @@
     for_each_mapper([sensorType](InputMapper& mapper) { mapper.flushSensor(sensorType); });
 }
 
-void InputDevice::cancelTouch(nsecs_t when) {
-    for_each_mapper([when](InputMapper& mapper) { mapper.cancelTouch(when); });
+void InputDevice::cancelTouch(nsecs_t when, nsecs_t readTime) {
+    for_each_mapper([when, readTime](InputMapper& mapper) { mapper.cancelTouch(when, readTime); });
 }
 
 std::optional<int32_t> InputDevice::getBatteryCapacity() {
diff --git a/services/inputflinger/reader/include/EventHub.h b/services/inputflinger/reader/include/EventHub.h
index 30967df..13364e0 100644
--- a/services/inputflinger/reader/include/EventHub.h
+++ b/services/inputflinger/reader/include/EventHub.h
@@ -51,7 +51,11 @@
  * A raw event as retrieved from the EventHub.
  */
 struct RawEvent {
+    // Time when the event happened
     nsecs_t when;
+    // Time when the event was read by EventHub. Only populated for input events.
+    // For other events (device added/removed/etc), this value is undefined and should not be read.
+    nsecs_t readTime;
     int32_t deviceId;
     int32_t type;
     int32_t code;
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index e4186c8..064e00d 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -86,7 +86,7 @@
     void cancelVibrate(int32_t token);
     bool isVibrating();
     std::vector<int32_t> getVibratorIds();
-    void cancelTouch(nsecs_t when);
+    void cancelTouch(nsecs_t when, nsecs_t readTime);
     bool enableSensor(InputDeviceSensorType sensorType, std::chrono::microseconds samplingPeriod,
                       std::chrono::microseconds maxBatchReportLatency);
     void disableSensor(InputDeviceSensorType sensorType);
@@ -322,7 +322,7 @@
     inline std::optional<DisplayViewport> getAssociatedViewport() const {
         return mDevice.getAssociatedViewport();
     }
-    inline void cancelTouch(nsecs_t when) { mDevice.cancelTouch(when); }
+    inline void cancelTouch(nsecs_t when, nsecs_t readTime) { mDevice.cancelTouch(when, readTime); }
     inline void bumpGeneration() { mDevice.bumpGeneration(); }
     inline const PropertyMap& getConfiguration() { return mDevice.getConfiguration(); }
 
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.cpp b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
index 254b64b..bb12be7 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
@@ -265,11 +265,11 @@
     mCursorScrollAccumulator.process(rawEvent);
 
     if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) {
-        sync(rawEvent->when);
+        sync(rawEvent->when, rawEvent->readTime);
     }
 }
 
-void CursorInputMapper::sync(nsecs_t when) {
+void CursorInputMapper::sync(nsecs_t when, nsecs_t readTime) {
     int32_t lastButtonState = mButtonState;
     int32_t currentButtonState = mCursorButtonAccumulator.getButtonState();
     mButtonState = currentButtonState;
@@ -362,8 +362,8 @@
     }
 
     // Synthesize key down from buttons if needed.
-    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, getDeviceId(), mSource,
-                         displayId, policyFlags, lastButtonState, currentButtonState);
+    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, readTime, getDeviceId(),
+                         mSource, displayId, policyFlags, lastButtonState, currentButtonState);
 
     // Send motion event.
     if (downChanged || moved || scrolled || buttonsChanged) {
@@ -383,8 +383,8 @@
             while (!released.isEmpty()) {
                 int32_t actionButton = BitSet32::valueForBit(released.clearFirstMarkedBit());
                 buttonState &= ~actionButton;
-                NotifyMotionArgs releaseArgs(getContext()->getNextId(), when, getDeviceId(),
-                                             mSource, displayId, policyFlags,
+                NotifyMotionArgs releaseArgs(getContext()->getNextId(), when, readTime,
+                                             getDeviceId(), mSource, displayId, policyFlags,
                                              AMOTION_EVENT_ACTION_BUTTON_RELEASE, actionButton, 0,
                                              metaState, buttonState, MotionClassification::NONE,
                                              AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties,
@@ -395,11 +395,11 @@
             }
         }
 
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, motionEventAction, 0, 0, metaState, currentButtonState,
-                              MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
-                              &pointerProperties, &pointerCoords, mXPrecision, mYPrecision,
-                              xCursorPosition, yCursorPosition, downTime,
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, motionEventAction, 0, 0, metaState,
+                              currentButtonState, MotionClassification::NONE,
+                              AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties, &pointerCoords,
+                              mXPrecision, mYPrecision, xCursorPosition, yCursorPosition, downTime,
                               /* videoFrames */ {});
         getListener()->notifyMotion(&args);
 
@@ -408,8 +408,8 @@
             while (!pressed.isEmpty()) {
                 int32_t actionButton = BitSet32::valueForBit(pressed.clearFirstMarkedBit());
                 buttonState |= actionButton;
-                NotifyMotionArgs pressArgs(getContext()->getNextId(), when, getDeviceId(), mSource,
-                                           displayId, policyFlags,
+                NotifyMotionArgs pressArgs(getContext()->getNextId(), when, readTime, getDeviceId(),
+                                           mSource, displayId, policyFlags,
                                            AMOTION_EVENT_ACTION_BUTTON_PRESS, actionButton, 0,
                                            metaState, buttonState, MotionClassification::NONE,
                                            AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties,
@@ -424,9 +424,10 @@
 
         // Send hover move after UP to tell the application that the mouse is hovering now.
         if (motionEventAction == AMOTION_EVENT_ACTION_UP && (mSource == AINPUT_SOURCE_MOUSE)) {
-            NotifyMotionArgs hoverArgs(getContext()->getNextId(), when, getDeviceId(), mSource,
-                                       displayId, policyFlags, AMOTION_EVENT_ACTION_HOVER_MOVE, 0,
-                                       0, metaState, currentButtonState, MotionClassification::NONE,
+            NotifyMotionArgs hoverArgs(getContext()->getNextId(), when, readTime, getDeviceId(),
+                                       mSource, displayId, policyFlags,
+                                       AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0, metaState,
+                                       currentButtonState, MotionClassification::NONE,
                                        AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties,
                                        &pointerCoords, mXPrecision, mYPrecision, xCursorPosition,
                                        yCursorPosition, downTime, /* videoFrames */ {});
@@ -438,9 +439,10 @@
             pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll);
             pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll);
 
-            NotifyMotionArgs scrollArgs(getContext()->getNextId(), when, getDeviceId(), mSource,
-                                        displayId, policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0, 0,
-                                        metaState, currentButtonState, MotionClassification::NONE,
+            NotifyMotionArgs scrollArgs(getContext()->getNextId(), when, readTime, getDeviceId(),
+                                        mSource, displayId, policyFlags,
+                                        AMOTION_EVENT_ACTION_SCROLL, 0, 0, metaState,
+                                        currentButtonState, MotionClassification::NONE,
                                         AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties,
                                         &pointerCoords, mXPrecision, mYPrecision, xCursorPosition,
                                         yCursorPosition, downTime, /* videoFrames */ {});
@@ -449,7 +451,7 @@
     }
 
     // Synthesize key up from buttons if needed.
-    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, getDeviceId(), mSource,
+    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, readTime, getDeviceId(), mSource,
                          displayId, policyFlags, lastButtonState, currentButtonState);
 
     mCursorMotionAccumulator.finishSync();
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.h b/services/inputflinger/reader/mapper/CursorInputMapper.h
index 05bbb26..9a8ca01 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.h
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.h
@@ -114,7 +114,7 @@
     void configureParameters();
     void dumpParameters(std::string& dump);
 
-    void sync(nsecs_t when);
+    void sync(nsecs_t when, nsecs_t readTime);
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index 1ce54ae..df1acd4 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp
@@ -68,7 +68,7 @@
     return {};
 }
 
-void InputMapper::cancelTouch(nsecs_t when) {}
+void InputMapper::cancelTouch(nsecs_t when, nsecs_t readTime) {}
 
 bool InputMapper::enableSensor(InputDeviceSensorType sensorType,
                                std::chrono::microseconds samplingPeriod,
diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index 1cc5979..8719f3a 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h
@@ -67,7 +67,7 @@
     virtual void cancelVibrate(int32_t token);
     virtual bool isVibrating();
     virtual std::vector<int32_t> getVibratorIds();
-    virtual void cancelTouch(nsecs_t when);
+    virtual void cancelTouch(nsecs_t when, nsecs_t readTime);
     virtual bool enableSensor(InputDeviceSensorType sensorType,
                               std::chrono::microseconds samplingPeriod,
                               std::chrono::microseconds maxBatchReportLatency);
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index 37aa140..0dc312e 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -299,14 +299,14 @@
         case EV_SYN:
             switch (rawEvent->code) {
                 case SYN_REPORT:
-                    sync(rawEvent->when, false /*force*/);
+                    sync(rawEvent->when, rawEvent->readTime, false /*force*/);
                     break;
             }
             break;
     }
 }
 
-void JoystickInputMapper::sync(nsecs_t when, bool force) {
+void JoystickInputMapper::sync(nsecs_t when, nsecs_t readTime, bool force) {
     if (!filterAxes(force)) {
         return;
     }
@@ -337,9 +337,10 @@
     // TODO: Use the input device configuration to control this behavior more finely.
     uint32_t policyFlags = 0;
 
-    NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), AINPUT_SOURCE_JOYSTICK,
-                          ADISPLAY_ID_NONE, policyFlags, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
-                          buttonState, MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
+    NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(),
+                          AINPUT_SOURCE_JOYSTICK, ADISPLAY_ID_NONE, policyFlags,
+                          AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState, buttonState,
+                          MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
                           &pointerProperties, &pointerCoords, 0, 0,
                           AMOTION_EVENT_INVALID_CURSOR_POSITION,
                           AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, /* videoFrames */ {});
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.h b/services/inputflinger/reader/mapper/JoystickInputMapper.h
index 0cf60a2..bba95ad 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.h
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.h
@@ -92,7 +92,7 @@
     // Axes indexed by raw ABS_* axis index.
     std::unordered_map<int32_t, Axis> mAxes;
 
-    void sync(nsecs_t when, bool force);
+    void sync(nsecs_t when, nsecs_t readTime, bool force);
 
     bool haveAxis(int32_t axisId);
     void pruneAxes(bool ignoreExplicitlyMappedAxes);
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index 8b9f235..2c5a576 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -216,7 +216,8 @@
             mCurrentHidUsage = 0;
 
             if (isKeyboardOrGamepadKey(scanCode)) {
-                processKey(rawEvent->when, rawEvent->value != 0, scanCode, usageCode);
+                processKey(rawEvent->when, rawEvent->readTime, rawEvent->value != 0, scanCode,
+                           usageCode);
             }
             break;
         }
@@ -269,7 +270,8 @@
     return false;
 }
 
-void KeyboardInputMapper::processKey(nsecs_t when, bool down, int32_t scanCode, int32_t usageCode) {
+void KeyboardInputMapper::processKey(nsecs_t when, nsecs_t readTime, bool down, int32_t scanCode,
+                                     int32_t usageCode) {
     int32_t keyCode;
     int32_t keyMetaState;
     uint32_t policyFlags;
@@ -299,7 +301,7 @@
                 return;
             }
             if (policyFlags & POLICY_FLAG_GESTURE) {
-                getDeviceContext().cancelTouch(when);
+                getDeviceContext().cancelTouch(when, readTime);
             }
 
             KeyDown keyDown;
@@ -350,8 +352,9 @@
         policyFlags |= POLICY_FLAG_DISABLE_KEY_REPEAT;
     }
 
-    NotifyKeyArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, getDisplayId(),
-                       policyFlags, down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP,
+    NotifyKeyArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                       getDisplayId(), policyFlags,
+                       down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP,
                        AKEY_EVENT_FLAG_FROM_SYSTEM, keyCode, scanCode, keyMetaState, downTime);
     getListener()->notifyKey(&args);
 }
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.h b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
index 4c0b42a..ca41712 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.h
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
@@ -86,7 +86,7 @@
     bool isKeyboardOrGamepadKey(int32_t scanCode);
     bool isMediaKey(int32_t keyCode);
 
-    void processKey(nsecs_t when, bool down, int32_t scanCode, int32_t usageCode);
+    void processKey(nsecs_t when, nsecs_t readTime, bool down, int32_t scanCode, int32_t usageCode);
 
     bool updateMetaStateIfNeeded(int32_t keyCode, bool down);
 
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
index 594ff42..e9d0189 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
@@ -87,11 +87,11 @@
     mRotaryEncoderScrollAccumulator.process(rawEvent);
 
     if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) {
-        sync(rawEvent->when);
+        sync(rawEvent->when, rawEvent->readTime);
     }
 }
 
-void RotaryEncoderInputMapper::sync(nsecs_t when) {
+void RotaryEncoderInputMapper::sync(nsecs_t when, nsecs_t readTime) {
     PointerCoords pointerCoords;
     pointerCoords.clear();
 
@@ -121,9 +121,9 @@
         int32_t metaState = getContext()->getGlobalMetaState();
         pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_SCROLL, scroll * mScalingFactor);
 
-        NotifyMotionArgs scrollArgs(getContext()->getNextId(), when, getDeviceId(), mSource,
-                                    displayId, policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0, 0,
-                                    metaState, /* buttonState */ 0, MotionClassification::NONE,
+        NotifyMotionArgs scrollArgs(getContext()->getNextId(), when, readTime, getDeviceId(),
+                                    mSource, displayId, policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0,
+                                    0, metaState, /* buttonState */ 0, MotionClassification::NONE,
                                     AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties,
                                     &pointerCoords, 0, 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
                                     AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, /* videoFrames */ {});
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
index 7a77b12..e0c9404 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
@@ -42,7 +42,7 @@
     float mScalingFactor;
     int32_t mOrientation;
 
-    void sync(nsecs_t when);
+    void sync(nsecs_t when, nsecs_t readTime);
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h b/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h
index a86443d..5344227 100644
--- a/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h
+++ b/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h
@@ -59,27 +59,27 @@
 }
 
 static void synthesizeButtonKey(InputReaderContext* context, int32_t action, nsecs_t when,
-                                int32_t deviceId, uint32_t source, int32_t displayId,
-                                uint32_t policyFlags, int32_t lastButtonState,
+                                nsecs_t readTime, int32_t deviceId, uint32_t source,
+                                int32_t displayId, uint32_t policyFlags, int32_t lastButtonState,
                                 int32_t currentButtonState, int32_t buttonState, int32_t keyCode) {
     if ((action == AKEY_EVENT_ACTION_DOWN && !(lastButtonState & buttonState) &&
          (currentButtonState & buttonState)) ||
         (action == AKEY_EVENT_ACTION_UP && (lastButtonState & buttonState) &&
          !(currentButtonState & buttonState))) {
-        NotifyKeyArgs args(context->getNextId(), when, deviceId, source, displayId, policyFlags,
-                           action, 0, keyCode, 0, context->getGlobalMetaState(), when);
+        NotifyKeyArgs args(context->getNextId(), when, readTime, deviceId, source, displayId,
+                           policyFlags, action, 0, keyCode, 0, context->getGlobalMetaState(), when);
         context->getListener()->notifyKey(&args);
     }
 }
 
 static void synthesizeButtonKeys(InputReaderContext* context, int32_t action, nsecs_t when,
-                                 int32_t deviceId, uint32_t source, int32_t displayId,
-                                 uint32_t policyFlags, int32_t lastButtonState,
+                                 nsecs_t readTime, int32_t deviceId, uint32_t source,
+                                 int32_t displayId, uint32_t policyFlags, int32_t lastButtonState,
                                  int32_t currentButtonState) {
-    synthesizeButtonKey(context, action, when, deviceId, source, displayId, policyFlags,
+    synthesizeButtonKey(context, action, when, readTime, deviceId, source, displayId, policyFlags,
                         lastButtonState, currentButtonState, AMOTION_EVENT_BUTTON_BACK,
                         AKEYCODE_BACK);
-    synthesizeButtonKey(context, action, when, deviceId, source, displayId, policyFlags,
+    synthesizeButtonKey(context, action, when, readTime, deviceId, source, displayId, policyFlags,
                         lastButtonState, currentButtonState, AMOTION_EVENT_BUTTON_FORWARD,
                         AKEYCODE_FORWARD);
 }
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index d1df37b..16cf010 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -1016,7 +1016,8 @@
             mPointerGestureMaxSwipeWidth = mConfig.pointerGestureSwipeMaxWidthRatio * rawDiagonal;
 
             // Abort current pointer usages because the state has changed.
-            abortPointerUsage(when, 0 /*policyFlags*/);
+            const nsecs_t readTime = when; // synthetic event
+            abortPointerUsage(when, readTime, 0 /*policyFlags*/);
         }
 
         // Inform the dispatcher about the changes.
@@ -1406,11 +1407,11 @@
     mTouchButtonAccumulator.process(rawEvent);
 
     if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) {
-        sync(rawEvent->when);
+        sync(rawEvent->when, rawEvent->readTime);
     }
 }
 
-void TouchInputMapper::sync(nsecs_t when) {
+void TouchInputMapper::sync(nsecs_t when, nsecs_t readTime) {
     const RawState* last =
             mRawStatesPending.empty() ? &mCurrentRawState : &mRawStatesPending.back();
 
@@ -1420,6 +1421,7 @@
     RawState* next = &mRawStatesPending.back();
     next->clear();
     next->when = when;
+    next->readTime = readTime;
 
     // Sync button state.
     next->buttonState =
@@ -1453,7 +1455,7 @@
 void TouchInputMapper::processRawTouches(bool timeout) {
     if (mDeviceMode == DeviceMode::DISABLED) {
         // Drop all input if the device is disabled.
-        cancelTouch(mCurrentRawState.when);
+        cancelTouch(mCurrentRawState.when, mCurrentRawState.readTime);
         mCurrentCookedState.clear();
         updateTouchSpots();
         return;
@@ -1479,8 +1481,9 @@
         mCurrentRawState.copyFrom(next);
         if (mCurrentRawState.when < mLastRawState.when) {
             mCurrentRawState.when = mLastRawState.when;
+            mCurrentRawState.readTime = mLastRawState.readTime;
         }
-        cookAndDispatch(mCurrentRawState.when);
+        cookAndDispatch(mCurrentRawState.when, mCurrentRawState.readTime);
     }
     if (count != 0) {
         mRawStatesPending.erase(mRawStatesPending.begin(), mRawStatesPending.begin() + count);
@@ -1494,7 +1497,8 @@
 #if DEBUG_STYLUS_FUSION
             ALOGD("Timeout expired, synthesizing event with new stylus data");
 #endif
-            cookAndDispatch(when);
+            const nsecs_t readTime = when; // consider this synthetic event to be zero latency
+            cookAndDispatch(when, readTime);
         } else if (mExternalStylusFusionTimeout == LLONG_MAX) {
             mExternalStylusFusionTimeout = mExternalStylusState.when + TOUCH_DATA_TIMEOUT;
             getContext()->requestTimeoutAtTime(mExternalStylusFusionTimeout);
@@ -1502,7 +1506,7 @@
     }
 }
 
-void TouchInputMapper::cookAndDispatch(nsecs_t when) {
+void TouchInputMapper::cookAndDispatch(nsecs_t when, nsecs_t readTime) {
     // Always start with a clean state.
     mCurrentCookedState.clear();
 
@@ -1528,7 +1532,7 @@
 
     // Consume raw off-screen touches before cooking pointer data.
     // If touches are consumed, subsequent code will not receive any pointer data.
-    if (consumeRawTouches(when, policyFlags)) {
+    if (consumeRawTouches(when, readTime, policyFlags)) {
         mCurrentRawState.rawPointerData.clear();
     }
 
@@ -1541,8 +1545,8 @@
     applyExternalStylusTouchState(when);
 
     // Synthesize key down from raw buttons if needed.
-    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, getDeviceId(), mSource,
-                         mViewport.displayId, policyFlags, mLastCookedState.buttonState,
+    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, readTime, getDeviceId(),
+                         mSource, mViewport.displayId, policyFlags, mLastCookedState.buttonState,
                          mCurrentCookedState.buttonState);
 
     // Dispatch the touches either directly or by translation through a pointer on screen.
@@ -1585,16 +1589,16 @@
             pointerUsage = PointerUsage::GESTURES;
         }
 
-        dispatchPointerUsage(when, policyFlags, pointerUsage);
+        dispatchPointerUsage(when, readTime, policyFlags, pointerUsage);
     } else {
         updateTouchSpots();
 
         if (!mCurrentMotionAborted) {
-            dispatchButtonRelease(when, policyFlags);
-            dispatchHoverExit(when, policyFlags);
-            dispatchTouches(when, policyFlags);
-            dispatchHoverEnterAndMove(when, policyFlags);
-            dispatchButtonPress(when, policyFlags);
+            dispatchButtonRelease(when, readTime, policyFlags);
+            dispatchHoverExit(when, readTime, policyFlags);
+            dispatchTouches(when, readTime, policyFlags);
+            dispatchHoverEnterAndMove(when, readTime, policyFlags);
+            dispatchButtonPress(when, readTime, policyFlags);
         }
 
         if (mCurrentCookedState.cookedPointerData.pointerCount == 0) {
@@ -1603,7 +1607,7 @@
     }
 
     // Synthesize key up from raw buttons if needed.
-    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, getDeviceId(), mSource,
+    synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, readTime, getDeviceId(), mSource,
                          mViewport.displayId, policyFlags, mLastCookedState.buttonState,
                          mCurrentCookedState.buttonState);
 
@@ -1716,7 +1720,9 @@
 void TouchInputMapper::timeoutExpired(nsecs_t when) {
     if (mDeviceMode == DeviceMode::POINTER) {
         if (mPointerUsage == PointerUsage::GESTURES) {
-            dispatchPointerGestures(when, 0 /*policyFlags*/, true /*isTimeout*/);
+            // Since this is a synthetic event, we can consider its latency to be zero
+            const nsecs_t readTime = when;
+            dispatchPointerGestures(when, readTime, 0 /*policyFlags*/, true /*isTimeout*/);
         }
     } else if (mDeviceMode == DeviceMode::DIRECT) {
         if (mExternalStylusFusionTimeout < when) {
@@ -1738,7 +1744,7 @@
     }
 }
 
-bool TouchInputMapper::consumeRawTouches(nsecs_t when, uint32_t policyFlags) {
+bool TouchInputMapper::consumeRawTouches(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     // Check for release of a virtual key.
     if (mCurrentVirtualKey.down) {
         if (mCurrentRawState.rawPointerData.touchingIdBits.isEmpty()) {
@@ -1749,7 +1755,7 @@
                 ALOGD("VirtualKeys: Generating key up: keyCode=%d, scanCode=%d",
                       mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode);
 #endif
-                dispatchVirtualKey(when, policyFlags, AKEY_EVENT_ACTION_UP,
+                dispatchVirtualKey(when, readTime, policyFlags, AKEY_EVENT_ACTION_UP,
                                    AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY);
             }
             return true;
@@ -1776,7 +1782,7 @@
             ALOGD("VirtualKeys: Canceling key: keyCode=%d, scanCode=%d", mCurrentVirtualKey.keyCode,
                   mCurrentVirtualKey.scanCode);
 #endif
-            dispatchVirtualKey(when, policyFlags, AKEY_EVENT_ACTION_UP,
+            dispatchVirtualKey(when, readTime, policyFlags, AKEY_EVENT_ACTION_UP,
                                AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY |
                                        AKEY_EVENT_FLAG_CANCELED);
         }
@@ -1807,7 +1813,7 @@
                         ALOGD("VirtualKeys: Generating key down: keyCode=%d, scanCode=%d",
                               mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode);
 #endif
-                        dispatchVirtualKey(when, policyFlags, AKEY_EVENT_ACTION_DOWN,
+                        dispatchVirtualKey(when, readTime, policyFlags, AKEY_EVENT_ACTION_DOWN,
                                            AKEY_EVENT_FLAG_FROM_SYSTEM |
                                                    AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY);
                     }
@@ -1838,7 +1844,7 @@
     return false;
 }
 
-void TouchInputMapper::dispatchVirtualKey(nsecs_t when, uint32_t policyFlags,
+void TouchInputMapper::dispatchVirtualKey(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
                                           int32_t keyEventAction, int32_t keyEventFlags) {
     int32_t keyCode = mCurrentVirtualKey.keyCode;
     int32_t scanCode = mCurrentVirtualKey.scanCode;
@@ -1846,19 +1852,19 @@
     int32_t metaState = getContext()->getGlobalMetaState();
     policyFlags |= POLICY_FLAG_VIRTUAL;
 
-    NotifyKeyArgs args(getContext()->getNextId(), when, getDeviceId(), AINPUT_SOURCE_KEYBOARD,
-                       mViewport.displayId, policyFlags, keyEventAction, keyEventFlags, keyCode,
-                       scanCode, metaState, downTime);
+    NotifyKeyArgs args(getContext()->getNextId(), when, readTime, getDeviceId(),
+                       AINPUT_SOURCE_KEYBOARD, mViewport.displayId, policyFlags, keyEventAction,
+                       keyEventFlags, keyCode, scanCode, metaState, downTime);
     getListener()->notifyKey(&args);
 }
 
-void TouchInputMapper::abortTouches(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::abortTouches(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     BitSet32 currentIdBits = mCurrentCookedState.cookedPointerData.touchingIdBits;
     if (!currentIdBits.isEmpty()) {
         int32_t metaState = getContext()->getGlobalMetaState();
         int32_t buttonState = mCurrentCookedState.buttonState;
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_CANCEL, 0, 0, metaState,
-                       buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_CANCEL, 0, 0,
+                       metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                        mCurrentCookedState.cookedPointerData.pointerProperties,
                        mCurrentCookedState.cookedPointerData.pointerCoords,
                        mCurrentCookedState.cookedPointerData.idToIndex, currentIdBits, -1,
@@ -1867,7 +1873,7 @@
     }
 }
 
-void TouchInputMapper::dispatchTouches(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchTouches(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     BitSet32 currentIdBits = mCurrentCookedState.cookedPointerData.touchingIdBits;
     BitSet32 lastIdBits = mLastCookedState.cookedPointerData.touchingIdBits;
     int32_t metaState = getContext()->getGlobalMetaState();
@@ -1877,8 +1883,8 @@
         if (!currentIdBits.isEmpty()) {
             // No pointer id changes so this is a move event.
             // The listener takes care of batching moves so we don't have to deal with that here.
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
-                           buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_MOVE, 0, 0,
+                           metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                            mCurrentCookedState.cookedPointerData.pointerProperties,
                            mCurrentCookedState.cookedPointerData.pointerCoords,
                            mCurrentCookedState.cookedPointerData.idToIndex, currentIdBits, -1,
@@ -1912,7 +1918,7 @@
             if (isCanceled) {
                 ALOGI("Canceling pointer %d for the palm event was detected.", upId);
             }
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_UP, 0,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_UP, 0,
                            isCanceled ? AMOTION_EVENT_FLAG_CANCELED : 0, metaState, buttonState, 0,
                            mLastCookedState.cookedPointerData.pointerProperties,
                            mLastCookedState.cookedPointerData.pointerCoords,
@@ -1927,8 +1933,9 @@
         // events, they do not generally handle them except when presented in a move event.
         if (moveNeeded && !moveIdBits.isEmpty()) {
             ALOG_ASSERT(moveIdBits.value == dispatchedIdBits.value);
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
-                           buttonState, 0, mCurrentCookedState.cookedPointerData.pointerProperties,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_MOVE, 0, 0,
+                           metaState, buttonState, 0,
+                           mCurrentCookedState.cookedPointerData.pointerProperties,
                            mCurrentCookedState.cookedPointerData.pointerCoords,
                            mCurrentCookedState.cookedPointerData.idToIndex, dispatchedIdBits, -1,
                            mOrientedXPrecision, mOrientedYPrecision, mDownTime);
@@ -1944,8 +1951,8 @@
                 mDownTime = when;
             }
 
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_DOWN, 0, 0,
-                           metaState, buttonState, 0,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_DOWN,
+                           0, 0, metaState, buttonState, 0,
                            mCurrentCookedState.cookedPointerData.pointerProperties,
                            mCurrentCookedState.cookedPointerData.pointerCoords,
                            mCurrentCookedState.cookedPointerData.idToIndex, dispatchedIdBits,
@@ -1954,13 +1961,13 @@
     }
 }
 
-void TouchInputMapper::dispatchHoverExit(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchHoverExit(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     if (mSentHoverEnter &&
         (mCurrentCookedState.cookedPointerData.hoveringIdBits.isEmpty() ||
          !mCurrentCookedState.cookedPointerData.touchingIdBits.isEmpty())) {
         int32_t metaState = getContext()->getGlobalMetaState();
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_EXIT, 0, 0, metaState,
-                       mLastCookedState.buttonState, 0,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_EXIT, 0, 0,
+                       metaState, mLastCookedState.buttonState, 0,
                        mLastCookedState.cookedPointerData.pointerProperties,
                        mLastCookedState.cookedPointerData.pointerCoords,
                        mLastCookedState.cookedPointerData.idToIndex,
@@ -1970,13 +1977,14 @@
     }
 }
 
-void TouchInputMapper::dispatchHoverEnterAndMove(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchHoverEnterAndMove(nsecs_t when, nsecs_t readTime,
+                                                 uint32_t policyFlags) {
     if (mCurrentCookedState.cookedPointerData.touchingIdBits.isEmpty() &&
         !mCurrentCookedState.cookedPointerData.hoveringIdBits.isEmpty()) {
         int32_t metaState = getContext()->getGlobalMetaState();
         if (!mSentHoverEnter) {
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_ENTER, 0, 0,
-                           metaState, mCurrentRawState.buttonState, 0,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_ENTER,
+                           0, 0, metaState, mCurrentRawState.buttonState, 0,
                            mCurrentCookedState.cookedPointerData.pointerProperties,
                            mCurrentCookedState.cookedPointerData.pointerCoords,
                            mCurrentCookedState.cookedPointerData.idToIndex,
@@ -1985,8 +1993,8 @@
             mSentHoverEnter = true;
         }
 
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0, metaState,
-                       mCurrentRawState.buttonState, 0,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0,
+                       metaState, mCurrentRawState.buttonState, 0,
                        mCurrentCookedState.cookedPointerData.pointerProperties,
                        mCurrentCookedState.cookedPointerData.pointerCoords,
                        mCurrentCookedState.cookedPointerData.idToIndex,
@@ -1995,7 +2003,7 @@
     }
 }
 
-void TouchInputMapper::dispatchButtonRelease(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchButtonRelease(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     BitSet32 releasedButtons(mLastCookedState.buttonState & ~mCurrentCookedState.buttonState);
     const BitSet32& idBits = findActiveIdBits(mLastCookedState.cookedPointerData);
     const int32_t metaState = getContext()->getGlobalMetaState();
@@ -2003,7 +2011,7 @@
     while (!releasedButtons.isEmpty()) {
         int32_t actionButton = BitSet32::valueForBit(releasedButtons.clearFirstMarkedBit());
         buttonState &= ~actionButton;
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_BUTTON_RELEASE,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_BUTTON_RELEASE,
                        actionButton, 0, metaState, buttonState, 0,
                        mCurrentCookedState.cookedPointerData.pointerProperties,
                        mCurrentCookedState.cookedPointerData.pointerCoords,
@@ -2012,7 +2020,7 @@
     }
 }
 
-void TouchInputMapper::dispatchButtonPress(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchButtonPress(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     BitSet32 pressedButtons(mCurrentCookedState.buttonState & ~mLastCookedState.buttonState);
     const BitSet32& idBits = findActiveIdBits(mCurrentCookedState.cookedPointerData);
     const int32_t metaState = getContext()->getGlobalMetaState();
@@ -2020,8 +2028,8 @@
     while (!pressedButtons.isEmpty()) {
         int32_t actionButton = BitSet32::valueForBit(pressedButtons.clearFirstMarkedBit());
         buttonState |= actionButton;
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_BUTTON_PRESS, actionButton,
-                       0, metaState, buttonState, 0,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_BUTTON_PRESS,
+                       actionButton, 0, metaState, buttonState, 0,
                        mCurrentCookedState.cookedPointerData.pointerProperties,
                        mCurrentCookedState.cookedPointerData.pointerCoords,
                        mCurrentCookedState.cookedPointerData.idToIndex, idBits, -1,
@@ -2308,38 +2316,38 @@
     }
 }
 
-void TouchInputMapper::dispatchPointerUsage(nsecs_t when, uint32_t policyFlags,
+void TouchInputMapper::dispatchPointerUsage(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
                                             PointerUsage pointerUsage) {
     if (pointerUsage != mPointerUsage) {
-        abortPointerUsage(when, policyFlags);
+        abortPointerUsage(when, readTime, policyFlags);
         mPointerUsage = pointerUsage;
     }
 
     switch (mPointerUsage) {
         case PointerUsage::GESTURES:
-            dispatchPointerGestures(when, policyFlags, false /*isTimeout*/);
+            dispatchPointerGestures(when, readTime, policyFlags, false /*isTimeout*/);
             break;
         case PointerUsage::STYLUS:
-            dispatchPointerStylus(when, policyFlags);
+            dispatchPointerStylus(when, readTime, policyFlags);
             break;
         case PointerUsage::MOUSE:
-            dispatchPointerMouse(when, policyFlags);
+            dispatchPointerMouse(when, readTime, policyFlags);
             break;
         case PointerUsage::NONE:
             break;
     }
 }
 
-void TouchInputMapper::abortPointerUsage(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::abortPointerUsage(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     switch (mPointerUsage) {
         case PointerUsage::GESTURES:
-            abortPointerGestures(when, policyFlags);
+            abortPointerGestures(when, readTime, policyFlags);
             break;
         case PointerUsage::STYLUS:
-            abortPointerStylus(when, policyFlags);
+            abortPointerStylus(when, readTime, policyFlags);
             break;
         case PointerUsage::MOUSE:
-            abortPointerMouse(when, policyFlags);
+            abortPointerMouse(when, readTime, policyFlags);
             break;
         case PointerUsage::NONE:
             break;
@@ -2348,7 +2356,8 @@
     mPointerUsage = PointerUsage::NONE;
 }
 
-void TouchInputMapper::dispatchPointerGestures(nsecs_t when, uint32_t policyFlags, bool isTimeout) {
+void TouchInputMapper::dispatchPointerGestures(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
+                                               bool isTimeout) {
     // Update current gesture coordinates.
     bool cancelPreviousGesture, finishPreviousGesture;
     bool sendEvents =
@@ -2441,8 +2450,8 @@
     BitSet32 dispatchedGestureIdBits(mPointerGesture.lastGestureIdBits);
     if (!dispatchedGestureIdBits.isEmpty()) {
         if (cancelPreviousGesture) {
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_CANCEL, 0, 0, metaState,
-                           buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_CANCEL, 0, 0,
+                           metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                            mPointerGesture.lastGestureProperties, mPointerGesture.lastGestureCoords,
                            mPointerGesture.lastGestureIdToIndex, dispatchedGestureIdBits, -1, 0, 0,
                            mPointerGesture.downTime);
@@ -2459,9 +2468,9 @@
             while (!upGestureIdBits.isEmpty()) {
                 uint32_t id = upGestureIdBits.clearFirstMarkedBit();
 
-                dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_UP, 0, 0,
-                               metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
-                               mPointerGesture.lastGestureProperties,
+                dispatchMotion(when, readTime, policyFlags, mSource,
+                               AMOTION_EVENT_ACTION_POINTER_UP, 0, 0, metaState, buttonState,
+                               AMOTION_EVENT_EDGE_FLAG_NONE, mPointerGesture.lastGestureProperties,
                                mPointerGesture.lastGestureCoords,
                                mPointerGesture.lastGestureIdToIndex, dispatchedGestureIdBits, id, 0,
                                0, mPointerGesture.downTime);
@@ -2473,8 +2482,8 @@
 
     // Send motion events for all pointers that moved.
     if (moveNeeded) {
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
-                       buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_MOVE, 0, 0,
+                       metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                        mPointerGesture.currentGestureProperties,
                        mPointerGesture.currentGestureCoords,
                        mPointerGesture.currentGestureIdToIndex, dispatchedGestureIdBits, -1, 0, 0,
@@ -2493,8 +2502,9 @@
                 mPointerGesture.downTime = when;
             }
 
-            dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_DOWN, 0, 0,
-                           metaState, buttonState, 0, mPointerGesture.currentGestureProperties,
+            dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_POINTER_DOWN,
+                           0, 0, metaState, buttonState, 0,
+                           mPointerGesture.currentGestureProperties,
                            mPointerGesture.currentGestureCoords,
                            mPointerGesture.currentGestureIdToIndex, dispatchedGestureIdBits, id, 0,
                            0, mPointerGesture.downTime);
@@ -2503,8 +2513,8 @@
 
     // Send motion events for hover.
     if (mPointerGesture.currentGestureMode == PointerGesture::Mode::HOVER) {
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0, metaState,
-                       buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0,
+                       metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                        mPointerGesture.currentGestureProperties,
                        mPointerGesture.currentGestureCoords,
                        mPointerGesture.currentGestureIdToIndex,
@@ -2528,11 +2538,11 @@
         pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y);
 
         const int32_t displayId = mPointerController->getDisplayId();
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0, metaState,
-                              buttonState, MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE,
-                              1, &pointerProperties, &pointerCoords, 0, 0, x, y,
-                              mPointerGesture.downTime, /* videoFrames */ {});
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0,
+                              metaState, buttonState, MotionClassification::NONE,
+                              AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties, &pointerCoords,
+                              0, 0, x, y, mPointerGesture.downTime, /* videoFrames */ {});
         getListener()->notifyMotion(&args);
     }
 
@@ -2554,13 +2564,13 @@
     }
 }
 
-void TouchInputMapper::abortPointerGestures(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::abortPointerGestures(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     // Cancel previously dispatches pointers.
     if (!mPointerGesture.lastGestureIdBits.isEmpty()) {
         int32_t metaState = getContext()->getGlobalMetaState();
         int32_t buttonState = mCurrentRawState.buttonState;
-        dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_CANCEL, 0, 0, metaState,
-                       buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
+        dispatchMotion(when, readTime, policyFlags, mSource, AMOTION_EVENT_ACTION_CANCEL, 0, 0,
+                       metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                        mPointerGesture.lastGestureProperties, mPointerGesture.lastGestureCoords,
                        mPointerGesture.lastGestureIdToIndex, mPointerGesture.lastGestureIdBits, -1,
                        0, 0, mPointerGesture.downTime);
@@ -3335,7 +3345,7 @@
     return true;
 }
 
-void TouchInputMapper::dispatchPointerStylus(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchPointerStylus(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     mPointerSimple.currentCoords.clear();
     mPointerSimple.currentProperties.clear();
 
@@ -3363,14 +3373,14 @@
         hovering = false;
     }
 
-    dispatchPointerSimple(when, policyFlags, down, hovering);
+    dispatchPointerSimple(when, readTime, policyFlags, down, hovering);
 }
 
-void TouchInputMapper::abortPointerStylus(nsecs_t when, uint32_t policyFlags) {
-    abortPointerSimple(when, policyFlags);
+void TouchInputMapper::abortPointerStylus(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
+    abortPointerSimple(when, readTime, policyFlags);
 }
 
-void TouchInputMapper::dispatchPointerMouse(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::dispatchPointerMouse(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     mPointerSimple.currentCoords.clear();
     mPointerSimple.currentProperties.clear();
 
@@ -3417,17 +3427,17 @@
         hovering = false;
     }
 
-    dispatchPointerSimple(when, policyFlags, down, hovering);
+    dispatchPointerSimple(when, readTime, policyFlags, down, hovering);
 }
 
-void TouchInputMapper::abortPointerMouse(nsecs_t when, uint32_t policyFlags) {
-    abortPointerSimple(when, policyFlags);
+void TouchInputMapper::abortPointerMouse(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
+    abortPointerSimple(when, readTime, policyFlags);
 
     mPointerVelocityControl.reset();
 }
 
-void TouchInputMapper::dispatchPointerSimple(nsecs_t when, uint32_t policyFlags, bool down,
-                                             bool hovering) {
+void TouchInputMapper::dispatchPointerSimple(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
+                                             bool down, bool hovering) {
     int32_t metaState = getContext()->getGlobalMetaState();
 
     if (down || hovering) {
@@ -3448,8 +3458,8 @@
         mPointerSimple.down = false;
 
         // Send up.
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, AMOTION_EVENT_ACTION_UP, 0, 0, metaState,
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, AMOTION_EVENT_ACTION_UP, 0, 0, metaState,
                               mLastRawState.buttonState, MotionClassification::NONE,
                               AMOTION_EVENT_EDGE_FLAG_NONE, 1, &mPointerSimple.lastProperties,
                               &mPointerSimple.lastCoords, mOrientedXPrecision, mOrientedYPrecision,
@@ -3462,9 +3472,9 @@
         mPointerSimple.hovering = false;
 
         // Send hover exit.
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, AMOTION_EVENT_ACTION_HOVER_EXIT, 0, 0, metaState,
-                              mLastRawState.buttonState, MotionClassification::NONE,
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, AMOTION_EVENT_ACTION_HOVER_EXIT, 0, 0,
+                              metaState, mLastRawState.buttonState, MotionClassification::NONE,
                               AMOTION_EVENT_EDGE_FLAG_NONE, 1, &mPointerSimple.lastProperties,
                               &mPointerSimple.lastCoords, mOrientedXPrecision, mOrientedYPrecision,
                               xCursorPosition, yCursorPosition, mPointerSimple.downTime,
@@ -3478,7 +3488,7 @@
             mPointerSimple.downTime = when;
 
             // Send down.
-            NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource,
+            NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
                                   displayId, policyFlags, AMOTION_EVENT_ACTION_DOWN, 0, 0,
                                   metaState, mCurrentRawState.buttonState,
                                   MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
@@ -3489,8 +3499,8 @@
         }
 
         // Send move.
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
                               mCurrentRawState.buttonState, MotionClassification::NONE,
                               AMOTION_EVENT_EDGE_FLAG_NONE, 1, &mPointerSimple.currentProperties,
                               &mPointerSimple.currentCoords, mOrientedXPrecision,
@@ -3504,7 +3514,7 @@
             mPointerSimple.hovering = true;
 
             // Send hover enter.
-            NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource,
+            NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
                                   displayId, policyFlags, AMOTION_EVENT_ACTION_HOVER_ENTER, 0, 0,
                                   metaState, mCurrentRawState.buttonState,
                                   MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
@@ -3515,9 +3525,9 @@
         }
 
         // Send hover move.
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0, metaState,
-                              mCurrentRawState.buttonState, MotionClassification::NONE,
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0,
+                              metaState, mCurrentRawState.buttonState, MotionClassification::NONE,
                               AMOTION_EVENT_EDGE_FLAG_NONE, 1, &mPointerSimple.currentProperties,
                               &mPointerSimple.currentCoords, mOrientedXPrecision,
                               mOrientedYPrecision, xCursorPosition, yCursorPosition,
@@ -3537,8 +3547,8 @@
         pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll);
         pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll);
 
-        NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), mSource, displayId,
-                              policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0, 0, metaState,
+        NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
+                              displayId, policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0, 0, metaState,
                               mCurrentRawState.buttonState, MotionClassification::NONE,
                               AMOTION_EVENT_EDGE_FLAG_NONE, 1, &mPointerSimple.currentProperties,
                               &pointerCoords, mOrientedXPrecision, mOrientedYPrecision,
@@ -3556,17 +3566,17 @@
     }
 }
 
-void TouchInputMapper::abortPointerSimple(nsecs_t when, uint32_t policyFlags) {
+void TouchInputMapper::abortPointerSimple(nsecs_t when, nsecs_t readTime, uint32_t policyFlags) {
     mPointerSimple.currentCoords.clear();
     mPointerSimple.currentProperties.clear();
 
-    dispatchPointerSimple(when, policyFlags, false, false);
+    dispatchPointerSimple(when, readTime, policyFlags, false, false);
 }
 
-void TouchInputMapper::dispatchMotion(nsecs_t when, uint32_t policyFlags, uint32_t source,
-                                      int32_t action, int32_t actionButton, int32_t flags,
-                                      int32_t metaState, int32_t buttonState, int32_t edgeFlags,
-                                      const PointerProperties* properties,
+void TouchInputMapper::dispatchMotion(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
+                                      uint32_t source, int32_t action, int32_t actionButton,
+                                      int32_t flags, int32_t metaState, int32_t buttonState,
+                                      int32_t edgeFlags, const PointerProperties* properties,
                                       const PointerCoords* coords, const uint32_t* idToIndex,
                                       BitSet32 idBits, int32_t changedId, float xPrecision,
                                       float yPrecision, nsecs_t downTime) {
@@ -3615,8 +3625,8 @@
     std::vector<TouchVideoFrame> frames = getDeviceContext().getVideoFrames();
     std::for_each(frames.begin(), frames.end(),
                   [this](TouchVideoFrame& frame) { frame.rotate(this->mSurfaceOrientation); });
-    NotifyMotionArgs args(getContext()->getNextId(), when, deviceId, source, displayId, policyFlags,
-                          action, actionButton, flags, metaState, buttonState,
+    NotifyMotionArgs args(getContext()->getNextId(), when, readTime, deviceId, source, displayId,
+                          policyFlags, action, actionButton, flags, metaState, buttonState,
                           MotionClassification::NONE, edgeFlags, pointerCount, pointerProperties,
                           pointerCoords, xPrecision, yPrecision, xCursorPosition, yCursorPosition,
                           downTime, std::move(frames));
@@ -3653,9 +3663,9 @@
     return changed;
 }
 
-void TouchInputMapper::cancelTouch(nsecs_t when) {
-    abortPointerUsage(when, 0 /*policyFlags*/);
-    abortTouches(when, 0 /* policyFlags*/);
+void TouchInputMapper::cancelTouch(nsecs_t when, nsecs_t readTime) {
+    abortPointerUsage(when, readTime, 0 /*policyFlags*/);
+    abortTouches(when, readTime, 0 /* policyFlags*/);
 }
 
 // Transform raw coordinate to surface coordinate
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index 6621825..cb52e2d 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -150,7 +150,7 @@
     bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, const int32_t* keyCodes,
                                uint8_t* outFlags) override;
 
-    void cancelTouch(nsecs_t when) override;
+    void cancelTouch(nsecs_t when, nsecs_t readTime) override;
     void timeoutExpired(nsecs_t when) override;
     void updateExternalStylusState(const StylusState& state) override;
     std::optional<int32_t> getAssociatedDisplayId() override;
@@ -298,6 +298,7 @@
 
     struct RawState {
         nsecs_t when;
+        nsecs_t readTime;
 
         // Raw pointer sample data.
         RawPointerData rawPointerData;
@@ -310,6 +311,7 @@
 
         void copyFrom(const RawState& other) {
             when = other.when;
+            readTime = other.readTime;
             rawPointerData.copyFrom(other.rawPointerData);
             buttonState = other.buttonState;
             rawVScroll = other.rawVScroll;
@@ -318,6 +320,7 @@
 
         void clear() {
             when = 0;
+            readTime = 0;
             rawPointerData.clear();
             buttonState = 0;
             rawVScroll = 0;
@@ -702,39 +705,42 @@
     void resetExternalStylus();
     void clearStylusDataPendingFlags();
 
-    void sync(nsecs_t when);
+    void sync(nsecs_t when, nsecs_t readTime);
 
-    bool consumeRawTouches(nsecs_t when, uint32_t policyFlags);
+    bool consumeRawTouches(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
     void processRawTouches(bool timeout);
-    void cookAndDispatch(nsecs_t when);
-    void dispatchVirtualKey(nsecs_t when, uint32_t policyFlags, int32_t keyEventAction,
-                            int32_t keyEventFlags);
+    void cookAndDispatch(nsecs_t when, nsecs_t readTime);
+    void dispatchVirtualKey(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
+                            int32_t keyEventAction, int32_t keyEventFlags);
 
-    void dispatchTouches(nsecs_t when, uint32_t policyFlags);
-    void dispatchHoverExit(nsecs_t when, uint32_t policyFlags);
-    void dispatchHoverEnterAndMove(nsecs_t when, uint32_t policyFlags);
-    void dispatchButtonRelease(nsecs_t when, uint32_t policyFlags);
-    void dispatchButtonPress(nsecs_t when, uint32_t policyFlags);
+    void dispatchTouches(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
+    void dispatchHoverExit(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
+    void dispatchHoverEnterAndMove(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
+    void dispatchButtonRelease(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
+    void dispatchButtonPress(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
     const BitSet32& findActiveIdBits(const CookedPointerData& cookedPointerData);
     void cookPointerData();
-    void abortTouches(nsecs_t when, uint32_t policyFlags);
+    void abortTouches(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
 
-    void dispatchPointerUsage(nsecs_t when, uint32_t policyFlags, PointerUsage pointerUsage);
-    void abortPointerUsage(nsecs_t when, uint32_t policyFlags);
+    void dispatchPointerUsage(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
+                              PointerUsage pointerUsage);
+    void abortPointerUsage(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
 
-    void dispatchPointerGestures(nsecs_t when, uint32_t policyFlags, bool isTimeout);
-    void abortPointerGestures(nsecs_t when, uint32_t policyFlags);
+    void dispatchPointerGestures(nsecs_t when, nsecs_t readTime, uint32_t policyFlags,
+                                 bool isTimeout);
+    void abortPointerGestures(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
     bool preparePointerGestures(nsecs_t when, bool* outCancelPreviousGesture,
                                 bool* outFinishPreviousGesture, bool isTimeout);
 
-    void dispatchPointerStylus(nsecs_t when, uint32_t policyFlags);
-    void abortPointerStylus(nsecs_t when, uint32_t policyFlags);
+    void dispatchPointerStylus(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
+    void abortPointerStylus(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
 
-    void dispatchPointerMouse(nsecs_t when, uint32_t policyFlags);
-    void abortPointerMouse(nsecs_t when, uint32_t policyFlags);
+    void dispatchPointerMouse(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
+    void abortPointerMouse(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
 
-    void dispatchPointerSimple(nsecs_t when, uint32_t policyFlags, bool down, bool hovering);
-    void abortPointerSimple(nsecs_t when, uint32_t policyFlags);
+    void dispatchPointerSimple(nsecs_t when, nsecs_t readTime, uint32_t policyFlags, bool down,
+                               bool hovering);
+    void abortPointerSimple(nsecs_t when, nsecs_t readTime, uint32_t policyFlags);
 
     bool assignExternalStylusId(const RawState& state, bool timeout);
     void applyExternalStylusButtonState(nsecs_t when);
@@ -744,9 +750,9 @@
     // If the changedId is >= 0 and the action is POINTER_DOWN or POINTER_UP, the
     // method will take care of setting the index and transmuting the action to DOWN or UP
     // it is the first / last pointer to go down / up.
-    void dispatchMotion(nsecs_t when, uint32_t policyFlags, uint32_t source, int32_t action,
-                        int32_t actionButton, int32_t flags, int32_t metaState, int32_t buttonState,
-                        int32_t edgeFlags, const PointerProperties* properties,
+    void dispatchMotion(nsecs_t when, nsecs_t readTime, uint32_t policyFlags, uint32_t source,
+                        int32_t action, int32_t actionButton, int32_t flags, int32_t metaState,
+                        int32_t buttonState, int32_t edgeFlags, const PointerProperties* properties,
                         const PointerCoords* coords, const uint32_t* idToIndex, BitSet32 idBits,
                         int32_t changedId, float xPrecision, float yPrecision, nsecs_t downTime);
 
diff --git a/services/inputflinger/tests/InputClassifierConverter_test.cpp b/services/inputflinger/tests/InputClassifierConverter_test.cpp
index f58b628..c0ada9d 100644
--- a/services/inputflinger/tests/InputClassifierConverter_test.cpp
+++ b/services/inputflinger/tests/InputClassifierConverter_test.cpp
@@ -38,13 +38,13 @@
     coords.setAxisValue(AMOTION_EVENT_AXIS_Y, 2);
     coords.setAxisValue(AMOTION_EVENT_AXIS_SIZE, 0.5);
     static constexpr nsecs_t downTime = 2;
-    NotifyMotionArgs motionArgs(1 /*sequenceNum*/, downTime /*eventTime*/, 3 /*deviceId*/,
-                                AINPUT_SOURCE_ANY, ADISPLAY_ID_DEFAULT, 4 /*policyFlags*/,
-                                AMOTION_EVENT_ACTION_DOWN, 0 /*actionButton*/, 0 /*flags*/,
-                                AMETA_NONE, 0 /*buttonState*/, MotionClassification::NONE,
-                                AMOTION_EVENT_EDGE_FLAG_NONE, 1 /*pointerCount*/, &properties,
-                                &coords, 0 /*xPrecision*/, 0 /*yPrecision*/,
-                                AMOTION_EVENT_INVALID_CURSOR_POSITION,
+    NotifyMotionArgs motionArgs(1 /*sequenceNum*/, downTime /*eventTime*/, 2 /*readTime*/,
+                                3 /*deviceId*/, AINPUT_SOURCE_ANY, ADISPLAY_ID_DEFAULT,
+                                4 /*policyFlags*/, AMOTION_EVENT_ACTION_DOWN, 0 /*actionButton*/,
+                                0 /*flags*/, AMETA_NONE, 0 /*buttonState*/,
+                                MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE,
+                                1 /*pointerCount*/, &properties, &coords, 0 /*xPrecision*/,
+                                0 /*yPrecision*/, AMOTION_EVENT_INVALID_CURSOR_POSITION,
                                 AMOTION_EVENT_INVALID_CURSOR_POSITION, downTime,
                                 {} /*videoFrames*/);
     return motionArgs;
diff --git a/services/inputflinger/tests/InputClassifier_test.cpp b/services/inputflinger/tests/InputClassifier_test.cpp
index ab74a04..a72df01 100644
--- a/services/inputflinger/tests/InputClassifier_test.cpp
+++ b/services/inputflinger/tests/InputClassifier_test.cpp
@@ -41,13 +41,13 @@
     coords.setAxisValue(AMOTION_EVENT_AXIS_X, 1);
     coords.setAxisValue(AMOTION_EVENT_AXIS_Y, 1);
     static constexpr nsecs_t downTime = 2;
-    NotifyMotionArgs motionArgs(1 /*sequenceNum*/, downTime /*eventTime*/, 3 /*deviceId*/,
-                                AINPUT_SOURCE_ANY, ADISPLAY_ID_DEFAULT, 4 /*policyFlags*/,
-                                AMOTION_EVENT_ACTION_DOWN, 0 /*actionButton*/, 0 /*flags*/,
-                                AMETA_NONE, 0 /*buttonState*/, MotionClassification::NONE,
-                                AMOTION_EVENT_EDGE_FLAG_NONE, 1 /*pointerCount*/, &properties,
-                                &coords, 0 /*xPrecision*/, 0 /*yPrecision*/,
-                                AMOTION_EVENT_INVALID_CURSOR_POSITION,
+    NotifyMotionArgs motionArgs(1 /*sequenceNum*/, downTime /*eventTime*/, 2 /*readTime*/,
+                                3 /*deviceId*/, AINPUT_SOURCE_ANY, ADISPLAY_ID_DEFAULT,
+                                4 /*policyFlags*/, AMOTION_EVENT_ACTION_DOWN, 0 /*actionButton*/,
+                                0 /*flags*/, AMETA_NONE, 0 /*buttonState*/,
+                                MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE,
+                                1 /*pointerCount*/, &properties, &coords, 0 /*xPrecision*/,
+                                0 /*yPrecision*/, AMOTION_EVENT_INVALID_CURSOR_POSITION,
                                 AMOTION_EVENT_INVALID_CURSOR_POSITION, downTime,
                                 {} /*videoFrames*/);
     return motionArgs;
@@ -85,9 +85,10 @@
 
 TEST_F(InputClassifierTest, SendToNextStage_NotifyKeyArgs) {
     // Create a basic key event and send to classifier
-    NotifyKeyArgs args(1/*sequenceNum*/, 2/*eventTime*/, 3/*deviceId*/, AINPUT_SOURCE_KEYBOARD,
-            ADISPLAY_ID_DEFAULT, 0/*policyFlags*/, AKEY_EVENT_ACTION_DOWN, 4/*flags*/,
-            AKEYCODE_HOME, 5/*scanCode*/, AMETA_NONE, 6/*downTime*/);
+    NotifyKeyArgs args(1 /*sequenceNum*/, 2 /*eventTime*/, 21 /*readTime*/, 3 /*deviceId*/,
+                       AINPUT_SOURCE_KEYBOARD, ADISPLAY_ID_DEFAULT, 0 /*policyFlags*/,
+                       AKEY_EVENT_ACTION_DOWN, 4 /*flags*/, AKEYCODE_HOME, 5 /*scanCode*/,
+                       AMETA_NONE, 6 /*downTime*/);
 
     mClassifier->notifyKey(&args);
     NotifyKeyArgs outArgs;
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index dd044ca..0fef8a3 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -1232,9 +1232,9 @@
 static NotifyKeyArgs generateKeyArgs(int32_t action, int32_t displayId = ADISPLAY_ID_NONE) {
     nsecs_t currentTime = systemTime(SYSTEM_TIME_MONOTONIC);
     // Define a valid key event.
-    NotifyKeyArgs args(/* id */ 0, currentTime, DEVICE_ID, AINPUT_SOURCE_KEYBOARD, displayId,
-                       POLICY_FLAG_PASS_TO_USER, action, /* flags */ 0, AKEYCODE_A, KEY_A,
-                       AMETA_NONE, currentTime);
+    NotifyKeyArgs args(/* id */ 0, currentTime, 0 /*readTime*/, DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
+                       displayId, POLICY_FLAG_PASS_TO_USER, action, /* flags */ 0, AKEYCODE_A,
+                       KEY_A, AMETA_NONE, currentTime);
 
     return args;
 }
@@ -1261,7 +1261,7 @@
 
     nsecs_t currentTime = systemTime(SYSTEM_TIME_MONOTONIC);
     // Define a valid motion event.
-    NotifyMotionArgs args(/* id */ 0, currentTime, DEVICE_ID, source, displayId,
+    NotifyMotionArgs args(/* id */ 0, currentTime, 0 /*readTime*/, DEVICE_ID, source, displayId,
                           POLICY_FLAG_PASS_TO_USER, action, /* actionButton */ 0, /* flags */ 0,
                           AMETA_NONE, /* buttonState */ 0, MotionClassification::NONE,
                           AMOTION_EVENT_EDGE_FLAG_NONE, pointerCount, pointerProperties,
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 409c62a..f626563 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -48,7 +48,8 @@
 static constexpr std::chrono::duration WAIT_TIMEOUT = 100ms;
 
 // An arbitrary time value.
-static const nsecs_t ARBITRARY_TIME = 1234;
+static constexpr nsecs_t ARBITRARY_TIME = 1234;
+static constexpr nsecs_t READ_TIME = 4321;
 
 // Arbitrary display properties.
 static constexpr int32_t DISPLAY_ID = 0;
@@ -427,14 +428,14 @@
         device->identifier.name = name;
         mDevices.add(deviceId, device);
 
-        enqueueEvent(ARBITRARY_TIME, deviceId, EventHubInterface::DEVICE_ADDED, 0, 0);
+        enqueueEvent(ARBITRARY_TIME, READ_TIME, deviceId, EventHubInterface::DEVICE_ADDED, 0, 0);
     }
 
     void removeDevice(int32_t deviceId) {
         delete mDevices.valueFor(deviceId);
         mDevices.removeItem(deviceId);
 
-        enqueueEvent(ARBITRARY_TIME, deviceId, EventHubInterface::DEVICE_REMOVED, 0, 0);
+        enqueueEvent(ARBITRARY_TIME, READ_TIME, deviceId, EventHubInterface::DEVICE_REMOVED, 0, 0);
     }
 
     bool isDeviceEnabled(int32_t deviceId) {
@@ -475,7 +476,7 @@
     }
 
     void finishDeviceScan() {
-        enqueueEvent(ARBITRARY_TIME, 0, EventHubInterface::FINISHED_DEVICE_SCAN, 0, 0);
+        enqueueEvent(ARBITRARY_TIME, READ_TIME, 0, EventHubInterface::FINISHED_DEVICE_SCAN, 0, 0);
     }
 
     void addConfigurationProperty(int32_t deviceId, const String8& key, const String8& value) {
@@ -576,11 +577,12 @@
         device->virtualKeys.push_back(definition);
     }
 
-    void enqueueEvent(nsecs_t when, int32_t deviceId, int32_t type,
-            int32_t code, int32_t value) {
+    void enqueueEvent(nsecs_t when, nsecs_t readTime, int32_t deviceId, int32_t type, int32_t code,
+                      int32_t value) {
         std::scoped_lock<std::mutex> lock(mLock);
         RawEvent event;
         event.when = when;
+        event.readTime = readTime;
         event.deviceId = deviceId;
         event.type = type;
         event.code = code;
@@ -1704,18 +1706,21 @@
 TEST_F(InputReaderTest, LoopOnce_ForwardsRawEventsToMappers) {
     constexpr int32_t deviceId = END_RESERVED_ID + 1000;
     constexpr Flags<InputDeviceClass> deviceClass = InputDeviceClass::KEYBOARD;
+    constexpr nsecs_t when = 0;
     constexpr int32_t eventHubId = 1;
+    constexpr nsecs_t readTime = 2;
     FakeInputMapper& mapper =
             addDeviceWithFakeInputMapper(deviceId, eventHubId, "fake", deviceClass,
                                          AINPUT_SOURCE_KEYBOARD, nullptr);
 
-    mFakeEventHub->enqueueEvent(0, eventHubId, EV_KEY, KEY_A, 1);
+    mFakeEventHub->enqueueEvent(when, readTime, eventHubId, EV_KEY, KEY_A, 1);
     mReader->loopOnce();
     ASSERT_NO_FATAL_FAILURE(mFakeEventHub->assertQueueIsEmpty());
 
     RawEvent event;
     ASSERT_NO_FATAL_FAILURE(mapper.assertProcessWasCalled(&event));
-    ASSERT_EQ(0, event.when);
+    ASSERT_EQ(when, event.when);
+    ASSERT_EQ(readTime, event.readTime);
     ASSERT_EQ(eventHubId, event.deviceId);
     ASSERT_EQ(EV_KEY, event.type);
     ASSERT_EQ(KEY_A, event.code);
@@ -2080,12 +2085,14 @@
     ASSERT_NE(prevId, keyArgs.id);
     prevId = keyArgs.id;
     ASSERT_LE(prevTimestamp, keyArgs.eventTime);
+    ASSERT_LE(keyArgs.eventTime, keyArgs.readTime);
     prevTimestamp = keyArgs.eventTime;
 
     ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_UP, keyArgs.action);
     ASSERT_NE(prevId, keyArgs.id);
     ASSERT_LE(prevTimestamp, keyArgs.eventTime);
+    ASSERT_LE(keyArgs.eventTime, keyArgs.readTime);
 }
 
 /**
@@ -2562,9 +2569,11 @@
         mFakePolicy->clearViewports();
     }
 
-    void process(InputMapper& mapper, nsecs_t when, int32_t type, int32_t code, int32_t value) {
+    void process(InputMapper& mapper, nsecs_t when, nsecs_t readTime, int32_t type, int32_t code,
+                 int32_t value) {
         RawEvent event;
         event.when = when;
+        event.readTime = readTime;
         event.deviceId = mapper.getDeviceContext().getEventHubId();
         event.type = type;
         event.code = code;
@@ -2643,10 +2652,10 @@
 TEST_F(SwitchInputMapperTest, Process) {
     SwitchInputMapper& mapper = addMapperAndConfigure<SwitchInputMapper>();
 
-    process(mapper, ARBITRARY_TIME, EV_SW, SW_LID, 1);
-    process(mapper, ARBITRARY_TIME, EV_SW, SW_JACK_PHYSICAL_INSERT, 1);
-    process(mapper, ARBITRARY_TIME, EV_SW, SW_HEADPHONE_INSERT, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SW, SW_LID, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SW, SW_JACK_PHYSICAL_INSERT, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SW, SW_HEADPHONE_INSERT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 
     NotifySwitchArgs args;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifySwitchWasCalled(&args));
@@ -2816,11 +2825,11 @@
                                     std::chrono::microseconds(10000),
                                     std::chrono::microseconds(0)));
     ASSERT_TRUE(mFakeEventHub->isDeviceEnabled(EVENTHUB_ID));
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_X, 20000);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_Y, -20000);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_Z, 40000);
-    process(mapper, ARBITRARY_TIME, EV_MSC, MSC_TIMESTAMP, 1000);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, 20000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, -20000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Z, 40000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_TIMESTAMP, 1000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 
     NotifySensorArgs args;
     std::vector<float> values = {20000.0f / ACCEL_RAW_RESOLUTION * GRAVITY_MS2_UNIT,
@@ -2846,11 +2855,11 @@
                                     std::chrono::microseconds(10000),
                                     std::chrono::microseconds(0)));
     ASSERT_TRUE(mFakeEventHub->isDeviceEnabled(EVENTHUB_ID));
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_RX, 20000);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_RY, -20000);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_RZ, 40000);
-    process(mapper, ARBITRARY_TIME, EV_MSC, MSC_TIMESTAMP, 1000);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_RX, 20000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_RY, -20000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_RZ, 40000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_TIMESTAMP, 1000);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 
     NotifySensorArgs args;
     std::vector<float> values = {20000.0f / GYRO_RAW_RESOLUTION * DEGREE_RADIAN_UNIT,
@@ -2919,14 +2928,14 @@
                                                   int32_t rotatedKeyCode, int32_t displayId) {
     NotifyKeyArgs args;
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, originalScanCode, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, originalScanCode, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
     ASSERT_EQ(originalScanCode, args.scanCode);
     ASSERT_EQ(rotatedKeyCode, args.keyCode);
     ASSERT_EQ(displayId, args.displayId);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, originalScanCode, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, originalScanCode, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
     ASSERT_EQ(originalScanCode, args.scanCode);
@@ -2959,7 +2968,7 @@
     mapper.updateMetaState(AKEYCODE_NUM_LOCK);
 
     // Key down by scan code.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_HOME, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
     NotifyKeyArgs args;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DEVICE_ID, args.deviceId);
@@ -2974,7 +2983,7 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 
     // Key up by scan code.
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_HOME, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DEVICE_ID, args.deviceId);
     ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
@@ -2988,8 +2997,8 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 
     // Key down by usage code.
-    process(mapper, ARBITRARY_TIME, EV_MSC, MSC_SCAN, USAGE_A);
-    process(mapper, ARBITRARY_TIME, EV_KEY, 0, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_A);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, 0, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DEVICE_ID, args.deviceId);
     ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
@@ -3003,8 +3012,8 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 
     // Key up by usage code.
-    process(mapper, ARBITRARY_TIME, EV_MSC, MSC_SCAN, USAGE_A);
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, 0, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_A);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, 0, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DEVICE_ID, args.deviceId);
     ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
@@ -3018,8 +3027,8 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 
     // Key down with unknown scan code or usage code.
-    process(mapper, ARBITRARY_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UNKNOWN, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UNKNOWN, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DEVICE_ID, args.deviceId);
     ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
@@ -3033,8 +3042,8 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 
     // Key up with unknown scan code or usage code.
-    process(mapper, ARBITRARY_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_UNKNOWN, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_UNKNOWN, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DEVICE_ID, args.deviceId);
     ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
@@ -3048,6 +3057,28 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 }
 
+/**
+ * Ensure that the readTime is set to the time when the EV_KEY is received.
+ */
+TEST_F(KeyboardInputMapperTest, Process_SendsReadTime) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+
+    KeyboardInputMapper& mapper =
+            addMapperAndConfigure<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
+                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+    NotifyKeyArgs args;
+
+    // Key down
+    process(mapper, ARBITRARY_TIME, 12 /*readTime*/, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(12, args.readTime);
+
+    // Key up
+    process(mapper, ARBITRARY_TIME, 15 /*readTime*/, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(15, args.readTime);
+}
+
 TEST_F(KeyboardInputMapperTest, Process_ShouldUpdateMetaState) {
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFTSHIFT, 0, AKEYCODE_SHIFT_LEFT, 0);
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
@@ -3064,7 +3095,7 @@
     mapper.updateMetaState(AKEYCODE_NUM_LOCK);
 
     // Metakey down.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_LEFTSHIFT, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_LEFTSHIFT, 1);
     NotifyKeyArgs args;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
@@ -3072,19 +3103,19 @@
     ASSERT_NO_FATAL_FAILURE(mReader->getContext()->assertUpdateGlobalMetaStateWasCalled());
 
     // Key down.
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_A, 1);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
     ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
 
     // Key up.
-    process(mapper, ARBITRARY_TIME + 2, EV_KEY, KEY_A, 0);
+    process(mapper, ARBITRARY_TIME + 2, READ_TIME, EV_KEY, KEY_A, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
     ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
 
     // Metakey up.
-    process(mapper, ARBITRARY_TIME + 3, EV_KEY, KEY_LEFTSHIFT, 0);
+    process(mapper, ARBITRARY_TIME + 3, READ_TIME, EV_KEY, KEY_LEFTSHIFT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AMETA_NONE, args.metaState);
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
@@ -3171,7 +3202,7 @@
     NotifyKeyArgs args;
     clearViewports();
     prepareDisplay(DISPLAY_ORIENTATION_270);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
     ASSERT_EQ(KEY_UP, args.scanCode);
@@ -3179,7 +3210,7 @@
 
     clearViewports();
     prepareDisplay(DISPLAY_ORIENTATION_180);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
     ASSERT_EQ(KEY_UP, args.scanCode);
@@ -3197,16 +3228,16 @@
     NotifyKeyArgs args;
 
     // Display id should be ADISPLAY_ID_NONE without any display configuration.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(ADISPLAY_ID_NONE, args.displayId);
 
     prepareDisplay(DISPLAY_ORIENTATION_0);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(ADISPLAY_ID_NONE, args.displayId);
 }
@@ -3227,9 +3258,9 @@
 
     setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_ORIENTATION_0,
                                  UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(DISPLAY_ID, args.displayId);
 
@@ -3237,9 +3268,9 @@
     clearViewports();
     setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_ORIENTATION_0,
                                  UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(newDisplayId, args.displayId);
 }
@@ -3303,48 +3334,48 @@
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
 
     // Toggle caps lock on.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
     ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
 
     // Toggle num lock on.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
     ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON, mapper.getMetaState());
 
     // Toggle caps lock off.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
     ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper.getMetaState());
 
     // Toggle scroll lock on.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
     ASSERT_EQ(AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
 
     // Toggle num lock off.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
     ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
 
     // Toggle scroll lock off.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
@@ -3372,7 +3403,7 @@
 
     NotifyKeyArgs args;
     // Press button "A"
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_A, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_A, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AMETA_NONE, args.metaState);
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
@@ -3380,7 +3411,7 @@
     ASSERT_EQ(AKEYCODE_BUTTON_A, args.keyCode);
 
     // Button up.
-    process(mapper, ARBITRARY_TIME + 2, EV_KEY, BTN_A, 0);
+    process(mapper, ARBITRARY_TIME + 2, READ_TIME, EV_KEY, BTN_A, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(AMETA_NONE, args.metaState);
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
@@ -3487,20 +3518,20 @@
     ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
 
     // Toggle caps lock on.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
     ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
 
     // Toggle num lock on.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
     ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON, mapper.getMetaState());
 
     // Toggle scroll lock on.
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
     ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
     ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
 
@@ -3555,28 +3586,28 @@
             addMapperAndConfigure<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
                                                        AINPUT_KEYBOARD_TYPE_ALPHABETIC);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_HOME, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
     NotifyKeyArgs args;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_HOME, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(uint32_t(0), args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_PLAY, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(uint32_t(0), args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_PLAY, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(uint32_t(0), args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_PLAYPAUSE, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 }
@@ -3593,28 +3624,28 @@
             addMapperAndConfigure<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
                                                        AINPUT_KEYBOARD_TYPE_ALPHABETIC);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_HOME, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
     NotifyKeyArgs args;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_HOME, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_DOWN, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_DOWN, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(uint32_t(0), args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_DOWN, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_DOWN, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(uint32_t(0), args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, KEY_PLAY, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, KEY_PLAY, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 }
@@ -3652,9 +3683,9 @@
                                                int32_t rotatedY) {
     NotifyMotionArgs args;
 
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, originalX);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, originalY);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, originalX);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, originalY);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3735,8 +3766,8 @@
 
     // Button press.
     // Mostly testing non x/y behavior here so we don't need to check again elsewhere.
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MOUSE, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MOUSE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
     ASSERT_EQ(DEVICE_ID, args.deviceId);
@@ -3776,8 +3807,8 @@
     ASSERT_EQ(ARBITRARY_TIME, args.downTime);
 
     // Button release.  Should have same down time.
-    process(mapper, ARBITRARY_TIME + 1, EV_KEY, BTN_MOUSE, 0);
-    process(mapper, ARBITRARY_TIME + 1, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, BTN_MOUSE, 0);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
     ASSERT_EQ(DEVICE_ID, args.deviceId);
@@ -3824,16 +3855,16 @@
     NotifyMotionArgs args;
 
     // Motion in X but not Y.
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
             1.0f / TRACKBALL_MOVEMENT_THRESHOLD, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // Motion in Y but not X.
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, -2);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, -2);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3847,8 +3878,8 @@
     NotifyMotionArgs args;
 
     // Button press.
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MOUSE, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MOUSE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3860,8 +3891,8 @@
             0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // Button release.
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MOUSE, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MOUSE, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3880,10 +3911,10 @@
     NotifyMotionArgs args;
 
     // Combined X, Y and Button.
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 1);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, -2);
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MOUSE, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, -2);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MOUSE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3897,9 +3928,9 @@
             1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // Move X, Y a bit while pressed.
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 2);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 2);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3907,8 +3938,8 @@
             1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // Release Button.
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MOUSE, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MOUSE, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, args.action);
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(args.pointerCoords[0],
@@ -3993,8 +4024,8 @@
     NotifyKeyArgs keyArgs;
 
     // press BTN_LEFT, release BTN_LEFT
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_LEFT, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_LEFT, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
     ASSERT_EQ(AMOTION_EVENT_BUTTON_PRIMARY, motionArgs.buttonState);
@@ -4009,8 +4040,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_LEFT, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_LEFT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(0, motionArgs.buttonState);
@@ -4033,9 +4064,9 @@
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // press BTN_RIGHT + BTN_MIDDLE, release BTN_RIGHT, release BTN_MIDDLE
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_RIGHT, 1);
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MIDDLE, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_RIGHT, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MIDDLE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
     ASSERT_EQ(AMOTION_EVENT_BUTTON_SECONDARY | AMOTION_EVENT_BUTTON_TERTIARY,
@@ -4062,8 +4093,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_RIGHT, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_RIGHT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(AMOTION_EVENT_BUTTON_TERTIARY, motionArgs.buttonState);
@@ -4078,16 +4109,16 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MIDDLE, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MIDDLE, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(0, motionArgs.buttonState);
     ASSERT_EQ(0, mFakePointerController->getButtonState());
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MIDDLE, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MIDDLE, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(0, motionArgs.buttonState);
@@ -4104,8 +4135,8 @@
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // press BTN_BACK, release BTN_BACK
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_BACK, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_BACK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, keyArgs.action);
     ASSERT_EQ(AKEYCODE_BACK, keyArgs.keyCode);
@@ -4124,8 +4155,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_BACK, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_BACK, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(0, motionArgs.buttonState);
@@ -4145,8 +4176,8 @@
     ASSERT_EQ(AKEYCODE_BACK, keyArgs.keyCode);
 
     // press BTN_SIDE, release BTN_SIDE
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_SIDE, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_SIDE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, keyArgs.action);
     ASSERT_EQ(AKEYCODE_BACK, keyArgs.keyCode);
@@ -4165,8 +4196,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_SIDE, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_SIDE, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(0, motionArgs.buttonState);
@@ -4186,8 +4217,8 @@
     ASSERT_EQ(AKEYCODE_BACK, keyArgs.keyCode);
 
     // press BTN_FORWARD, release BTN_FORWARD
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_FORWARD, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_FORWARD, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, keyArgs.action);
     ASSERT_EQ(AKEYCODE_FORWARD, keyArgs.keyCode);
@@ -4206,8 +4237,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_FORWARD, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_FORWARD, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(0, motionArgs.buttonState);
@@ -4227,8 +4258,8 @@
     ASSERT_EQ(AKEYCODE_FORWARD, keyArgs.keyCode);
 
     // press BTN_EXTRA, release BTN_EXTRA
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_EXTRA, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_EXTRA, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, keyArgs.action);
     ASSERT_EQ(AKEYCODE_FORWARD, keyArgs.keyCode);
@@ -4247,8 +4278,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0],
             100.0f, 200.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_EXTRA, 0);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_EXTRA, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, motionArgs.action);
     ASSERT_EQ(0, motionArgs.buttonState);
@@ -4278,9 +4309,9 @@
 
     NotifyMotionArgs args;
 
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 10);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, 20);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 10);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, 20);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_HOVER_MOVE, args.action);
@@ -4306,9 +4337,9 @@
     NotifyMotionArgs args;
 
     // Move.
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 10);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, 20);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 10);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, 20);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE_RELATIVE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, args.action);
@@ -4317,8 +4348,8 @@
     ASSERT_NO_FATAL_FAILURE(assertPosition(*mFakePointerController, 100.0f, 200.0f));
 
     // Button press.
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_MOUSE, 1);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_MOUSE, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE_RELATIVE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, args.action);
@@ -4331,8 +4362,8 @@
             0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // Button release.
-    process(mapper, ARBITRARY_TIME + 2, EV_KEY, BTN_MOUSE, 0);
-    process(mapper, ARBITRARY_TIME + 2, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME + 2, READ_TIME, EV_KEY, BTN_MOUSE, 0);
+    process(mapper, ARBITRARY_TIME + 2, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE_RELATIVE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_BUTTON_RELEASE, args.action);
@@ -4345,9 +4376,9 @@
             0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
 
     // Another move.
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 30);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, 40);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 30);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, 40);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE_RELATIVE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, args.action);
@@ -4366,9 +4397,9 @@
     ASSERT_EQ(ARBITRARY_TIME, resetArgs.eventTime);
     ASSERT_EQ(DEVICE_ID, resetArgs.deviceId);
 
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 10);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, 20);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 10);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, 20);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_HOVER_MOVE, args.action);
@@ -4394,9 +4425,9 @@
     mFakePointerController->setButtonState(0);
 
     NotifyMotionArgs args;
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_X, 10);
-    process(mapper, ARBITRARY_TIME, EV_REL, REL_Y, 20);
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_X, 10);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_REL, REL_Y, 20);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
     ASSERT_EQ(AINPUT_SOURCE_MOUSE, args.source);
     ASSERT_EQ(AMOTION_EVENT_ACTION_HOVER_MOVE, args.action);
@@ -4619,46 +4650,46 @@
 }
 
 void SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_TOUCH, 1);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_Y, y);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
 }
 
 void SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_Y, y);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
 }
 
 void SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, EV_KEY, BTN_TOUCH, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
 }
 
 void SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper, int32_t pressure) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_PRESSURE, pressure);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
 }
 
 void SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
                                                   int32_t toolMajor) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
 }
 
 void SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper, int32_t distance) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_DISTANCE, distance);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
 }
 
 void SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper, int32_t tiltX,
                                              int32_t tiltY) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_TILT_X, tiltX);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
 }
 
 void SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper, int32_t code,
                                             int32_t value) {
-    process(mapper, ARBITRARY_TIME, EV_KEY, code, value);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
 }
 
 void SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 }
 
 TEST_F(SingleTouchInputMapperTest, GetSources_WhenDeviceTypeIsNotSpecifiedAndNotACursor_ReturnsPointer) {
@@ -5946,64 +5977,64 @@
 
 void MultiTouchInputMapperTest::processPosition(MultiTouchInputMapper& mapper, int32_t x,
                                                 int32_t y) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_POSITION_X, x);
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_POSITION_Y, y);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_POSITION_X, x);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_POSITION_Y, y);
 }
 
 void MultiTouchInputMapperTest::processTouchMajor(MultiTouchInputMapper& mapper,
                                                   int32_t touchMajor) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_TOUCH_MAJOR, touchMajor);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_TOUCH_MAJOR, touchMajor);
 }
 
 void MultiTouchInputMapperTest::processTouchMinor(MultiTouchInputMapper& mapper,
                                                   int32_t touchMinor) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_TOUCH_MINOR, touchMinor);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_TOUCH_MINOR, touchMinor);
 }
 
 void MultiTouchInputMapperTest::processToolMajor(MultiTouchInputMapper& mapper, int32_t toolMajor) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_WIDTH_MAJOR, toolMajor);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_WIDTH_MAJOR, toolMajor);
 }
 
 void MultiTouchInputMapperTest::processToolMinor(MultiTouchInputMapper& mapper, int32_t toolMinor) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_WIDTH_MINOR, toolMinor);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_WIDTH_MINOR, toolMinor);
 }
 
 void MultiTouchInputMapperTest::processOrientation(MultiTouchInputMapper& mapper,
                                                    int32_t orientation) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_ORIENTATION, orientation);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_ORIENTATION, orientation);
 }
 
 void MultiTouchInputMapperTest::processPressure(MultiTouchInputMapper& mapper, int32_t pressure) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_PRESSURE, pressure);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_PRESSURE, pressure);
 }
 
 void MultiTouchInputMapperTest::processDistance(MultiTouchInputMapper& mapper, int32_t distance) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_DISTANCE, distance);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_DISTANCE, distance);
 }
 
 void MultiTouchInputMapperTest::processId(MultiTouchInputMapper& mapper, int32_t id) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_TRACKING_ID, id);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_TRACKING_ID, id);
 }
 
 void MultiTouchInputMapperTest::processSlot(MultiTouchInputMapper& mapper, int32_t slot) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_SLOT, slot);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_SLOT, slot);
 }
 
 void MultiTouchInputMapperTest::processToolType(MultiTouchInputMapper& mapper, int32_t toolType) {
-    process(mapper, ARBITRARY_TIME, EV_ABS, ABS_MT_TOOL_TYPE, toolType);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_MT_TOOL_TYPE, toolType);
 }
 
 void MultiTouchInputMapperTest::processKey(MultiTouchInputMapper& mapper, int32_t code,
                                            int32_t value) {
-    process(mapper, ARBITRARY_TIME, EV_KEY, code, value);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
 }
 
 void MultiTouchInputMapperTest::processMTSync(MultiTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_MT_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_MT_REPORT, 0);
 }
 
 void MultiTouchInputMapperTest::processSync(MultiTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 }
 
 TEST_F(MultiTouchInputMapperTest, Process_NormalMultiTouchGesture_WithoutTrackingIds) {
@@ -7437,6 +7468,32 @@
 }
 
 /**
+ * Ensure that the readTime is set to the SYN_REPORT value when processing touch events.
+ */
+TEST_F(MultiTouchInputMapperTest, Process_SendsReadTime) {
+    addConfigurationProperty("touch.deviceType", "touchScreen");
+    prepareAxes(POSITION);
+    MultiTouchInputMapper& mapper = addMapperAndConfigure<MultiTouchInputMapper>();
+
+    prepareDisplay(DISPLAY_ORIENTATION_0);
+    process(mapper, 10, 11 /*readTime*/, EV_ABS, ABS_MT_TRACKING_ID, 1);
+    process(mapper, 15, 16 /*readTime*/, EV_ABS, ABS_MT_POSITION_X, 100);
+    process(mapper, 20, 21 /*readTime*/, EV_ABS, ABS_MT_POSITION_Y, 100);
+    process(mapper, 25, 26 /*readTime*/, EV_SYN, SYN_REPORT, 0);
+
+    NotifyMotionArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
+    ASSERT_EQ(26, args.readTime);
+
+    process(mapper, 30, 31 /*readTime*/, EV_ABS, ABS_MT_POSITION_X, 110);
+    process(mapper, 30, 32 /*readTime*/, EV_ABS, ABS_MT_POSITION_Y, 220);
+    process(mapper, 30, 33 /*readTime*/, EV_SYN, SYN_REPORT, 0);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
+    ASSERT_EQ(33, args.readTime);
+}
+
+/**
  * When the viewport is not active (isActive=false), the touch mapper should be disabled and the
  * events should not be delivered to the listener.
  */