diff --git a/services/surfaceflinger/CompositionEngine/src/Display.cpp b/services/surfaceflinger/CompositionEngine/src/Display.cpp
index d359424..0ebbcd0 100644
--- a/services/surfaceflinger/CompositionEngine/src/Display.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Display.cpp
@@ -243,7 +243,7 @@
         return false;
     }
 
-    const nsecs_t startTime = systemTime();
+    const TimePoint startTime = TimePoint::now();
 
     // Get any composition changes requested by the HWC device, and apply them.
     std::optional<android::HWComposer::DeviceRequestedChanges> changes;
@@ -261,7 +261,7 @@
     }
 
     if (isPowerHintSessionEnabled()) {
-        mPowerAdvisor->setHwcValidateTiming(mId, startTime, systemTime());
+        mPowerAdvisor->setHwcValidateTiming(mId, startTime, TimePoint::now());
         mPowerAdvisor->setRequiresClientComposition(mId, requiresClientComposition);
     }
 
@@ -365,7 +365,7 @@
 
     auto& hwc = getCompositionEngine().getHwComposer();
 
-    const nsecs_t startTime = systemTime();
+    const TimePoint startTime = TimePoint::now();
 
     if (isPowerHintSessionEnabled()) {
         if (!getCompositionEngine().getHwComposer().getComposer()->isSupported(
@@ -379,7 +379,7 @@
                                    getState().previousPresentFence);
 
     if (isPowerHintSessionEnabled()) {
-        mPowerAdvisor->setHwcPresentTiming(mId, startTime, systemTime());
+        mPowerAdvisor->setHwcPresentTiming(mId, startTime, TimePoint::now());
     }
 
     fences.presentFence = hwc.getPresentFence(*halDisplayIdOpt);
diff --git a/services/surfaceflinger/CompositionEngine/tests/MockPowerAdvisor.h b/services/surfaceflinger/CompositionEngine/tests/MockPowerAdvisor.h
index c8bd5e4..e220541 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockPowerAdvisor.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockPowerAdvisor.h
@@ -38,7 +38,7 @@
     MOCK_METHOD(bool, usePowerHintSession, (), (override));
     MOCK_METHOD(bool, supportsPowerHintSession, (), (override));
     MOCK_METHOD(bool, isPowerHintSessionRunning, (), (override));
-    MOCK_METHOD(void, setTargetWorkDuration, (int64_t targetDuration), (override));
+    MOCK_METHOD(void, setTargetWorkDuration, (Duration targetDuration), (override));
     MOCK_METHOD(void, sendActualWorkDuration, (), (override));
     MOCK_METHOD(void, sendPredictedWorkDuration, (), (override));
     MOCK_METHOD(void, enablePowerHint, (bool enabled), (override));
@@ -46,25 +46,24 @@
     MOCK_METHOD(void, setGpuFenceTime,
                 (DisplayId displayId, std::unique_ptr<FenceTime>&& fenceTime), (override));
     MOCK_METHOD(void, setHwcValidateTiming,
-                (DisplayId displayId, nsecs_t valiateStartTime, nsecs_t validateEndTime),
+                (DisplayId displayId, TimePoint validateStartTime, TimePoint validateEndTime),
                 (override));
     MOCK_METHOD(void, setHwcPresentTiming,
-                (DisplayId displayId, nsecs_t presentStartTime, nsecs_t presentEndTime),
+                (DisplayId displayId, TimePoint presentStartTime, TimePoint presentEndTime),
                 (override));
     MOCK_METHOD(void, setSkippedValidate, (DisplayId displayId, bool skipped), (override));
     MOCK_METHOD(void, setRequiresClientComposition,
                 (DisplayId displayId, bool requiresClientComposition), (override));
-    MOCK_METHOD(void, setExpectedPresentTime, (nsecs_t expectedPresentTime), (override));
-    MOCK_METHOD(void, setSfPresentTiming, (nsecs_t presentFenceTime, nsecs_t presentEndTime),
+    MOCK_METHOD(void, setExpectedPresentTime, (TimePoint expectedPresentTime), (override));
+    MOCK_METHOD(void, setSfPresentTiming, (TimePoint presentFenceTime, TimePoint presentEndTime),
                 (override));
     MOCK_METHOD(void, setHwcPresentDelayedTime,
-                (DisplayId displayId,
-                 std::chrono::steady_clock::time_point earliestFrameStartTime));
-    MOCK_METHOD(void, setFrameDelay, (nsecs_t frameDelayDuration), (override));
-    MOCK_METHOD(void, setCommitStart, (nsecs_t commitStartTime), (override));
-    MOCK_METHOD(void, setCompositeEnd, (nsecs_t compositeEndtime), (override));
+                (DisplayId displayId, TimePoint earliestFrameStartTime));
+    MOCK_METHOD(void, setFrameDelay, (Duration frameDelayDuration), (override));
+    MOCK_METHOD(void, setCommitStart, (TimePoint commitStartTime), (override));
+    MOCK_METHOD(void, setCompositeEnd, (TimePoint compositeEndTime), (override));
     MOCK_METHOD(void, setDisplays, (std::vector<DisplayId> & displayIds), (override));
-    MOCK_METHOD(void, setTotalFrameTargetWorkDuration, (int64_t targetDuration), (override));
+    MOCK_METHOD(void, setTotalFrameTargetWorkDuration, (Duration targetDuration), (override));
 };
 
 } // namespace mock
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp b/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
index d5309a9..cb2c8c5 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
@@ -59,8 +59,6 @@
 using android::hardware::power::Mode;
 using android::hardware::power::WorkDuration;
 
-using scheduler::OneShotTimer;
-
 PowerAdvisor::~PowerAdvisor() = default;
 
 namespace {
@@ -196,7 +194,7 @@
     return mPowerHintSessionRunning;
 }
 
-void PowerAdvisor::setTargetWorkDuration(int64_t targetDuration) {
+void PowerAdvisor::setTargetWorkDuration(Duration targetDuration) {
     if (!usePowerHintSession()) {
         ALOGV("Power hint session target duration cannot be set, skipping");
         return;
@@ -215,13 +213,13 @@
         ALOGV("Actual work duration power hint cannot be sent, skipping");
         return;
     }
-    const std::optional<nsecs_t> actualDuration = estimateWorkDuration(false);
+    const std::optional<Duration> actualDuration = estimateWorkDuration(false);
     if (actualDuration.has_value()) {
         std::lock_guard lock(mPowerHalMutex);
         HalWrapper* const halWrapper = getPowerHal();
         if (halWrapper != nullptr) {
-            halWrapper->sendActualWorkDuration(*actualDuration + kTargetSafetyMargin.count(),
-                                               systemTime());
+            halWrapper->sendActualWorkDuration(*actualDuration + kTargetSafetyMargin,
+                                               TimePoint::now());
         }
     }
 }
@@ -232,14 +230,14 @@
         return;
     }
 
-    const std::optional<nsecs_t> predictedDuration = estimateWorkDuration(true);
+    const std::optional<Duration> predictedDuration = estimateWorkDuration(true);
 
     if (predictedDuration.has_value()) {
         std::lock_guard lock(mPowerHalMutex);
         HalWrapper* const halWrapper = getPowerHal();
         if (halWrapper != nullptr) {
-            halWrapper->sendActualWorkDuration(*predictedDuration + kTargetSafetyMargin.count(),
-                                               systemTime());
+            halWrapper->sendActualWorkDuration(*predictedDuration + kTargetSafetyMargin,
+                                               TimePoint::now());
         }
     }
 }
@@ -281,22 +279,22 @@
                 }
             }
             displayData.lastValidGpuStartTime = displayData.gpuStartTime;
-            displayData.lastValidGpuEndTime = signalTime;
+            displayData.lastValidGpuEndTime = TimePoint::fromNs(signalTime);
         }
     }
     displayData.gpuEndFenceTime = std::move(fenceTime);
-    displayData.gpuStartTime = systemTime();
+    displayData.gpuStartTime = TimePoint::now();
 }
 
-void PowerAdvisor::setHwcValidateTiming(DisplayId displayId, nsecs_t validateStartTime,
-                                        nsecs_t validateEndTime) {
+void PowerAdvisor::setHwcValidateTiming(DisplayId displayId, TimePoint validateStartTime,
+                                        TimePoint validateEndTime) {
     DisplayTimingData& displayData = mDisplayTimingData[displayId];
     displayData.hwcValidateStartTime = validateStartTime;
     displayData.hwcValidateEndTime = validateEndTime;
 }
 
-void PowerAdvisor::setHwcPresentTiming(DisplayId displayId, nsecs_t presentStartTime,
-                                       nsecs_t presentEndTime) {
+void PowerAdvisor::setHwcPresentTiming(DisplayId displayId, TimePoint presentStartTime,
+                                       TimePoint presentEndTime) {
     DisplayTimingData& displayData = mDisplayTimingData[displayId];
     displayData.hwcPresentStartTime = presentStartTime;
     displayData.hwcPresentEndTime = presentEndTime;
@@ -311,43 +309,41 @@
     mDisplayTimingData[displayId].usedClientComposition = requiresClientComposition;
 }
 
-void PowerAdvisor::setExpectedPresentTime(nsecs_t expectedPresentTime) {
+void PowerAdvisor::setExpectedPresentTime(TimePoint expectedPresentTime) {
     mExpectedPresentTimes.append(expectedPresentTime);
 }
 
-void PowerAdvisor::setSfPresentTiming(nsecs_t presentFenceTime, nsecs_t presentEndTime) {
+void PowerAdvisor::setSfPresentTiming(TimePoint presentFenceTime, TimePoint presentEndTime) {
     mLastSfPresentEndTime = presentEndTime;
     mLastPresentFenceTime = presentFenceTime;
 }
 
-void PowerAdvisor::setFrameDelay(nsecs_t frameDelayDuration) {
+void PowerAdvisor::setFrameDelay(Duration frameDelayDuration) {
     mFrameDelayDuration = frameDelayDuration;
 }
 
-void PowerAdvisor::setHwcPresentDelayedTime(
-        DisplayId displayId, std::chrono::steady_clock::time_point earliestFrameStartTime) {
-    mDisplayTimingData[displayId].hwcPresentDelayedTime =
-            (earliestFrameStartTime - std::chrono::steady_clock::now()).count() + systemTime();
+void PowerAdvisor::setHwcPresentDelayedTime(DisplayId displayId, TimePoint earliestFrameStartTime) {
+    mDisplayTimingData[displayId].hwcPresentDelayedTime = earliestFrameStartTime;
 }
 
-void PowerAdvisor::setCommitStart(nsecs_t commitStartTime) {
+void PowerAdvisor::setCommitStart(TimePoint commitStartTime) {
     mCommitStartTimes.append(commitStartTime);
 }
 
-void PowerAdvisor::setCompositeEnd(nsecs_t compositeEnd) {
-    mLastPostcompDuration = compositeEnd - mLastSfPresentEndTime;
+void PowerAdvisor::setCompositeEnd(TimePoint compositeEndTime) {
+    mLastPostcompDuration = compositeEndTime - mLastSfPresentEndTime;
 }
 
 void PowerAdvisor::setDisplays(std::vector<DisplayId>& displayIds) {
     mDisplayIds = displayIds;
 }
 
-void PowerAdvisor::setTotalFrameTargetWorkDuration(nsecs_t targetDuration) {
+void PowerAdvisor::setTotalFrameTargetWorkDuration(Duration targetDuration) {
     mTotalFrameTargetDuration = targetDuration;
 }
 
 std::vector<DisplayId> PowerAdvisor::getOrderedDisplayIds(
-        std::optional<nsecs_t> DisplayTimingData::*sortBy) {
+        std::optional<TimePoint> DisplayTimingData::*sortBy) {
     std::vector<DisplayId> sortedDisplays;
     std::copy_if(mDisplayIds.begin(), mDisplayIds.end(), std::back_inserter(sortedDisplays),
                  [&](DisplayId id) {
@@ -360,33 +356,34 @@
     return sortedDisplays;
 }
 
-std::optional<nsecs_t> PowerAdvisor::estimateWorkDuration(bool earlyHint) {
+std::optional<Duration> PowerAdvisor::estimateWorkDuration(bool earlyHint) {
     if (earlyHint && (!mExpectedPresentTimes.isFull() || !mCommitStartTimes.isFull())) {
         return std::nullopt;
     }
 
     // Tracks when we finish presenting to hwc
-    nsecs_t estimatedEndTime = mCommitStartTimes[0];
+    TimePoint estimatedEndTime = mCommitStartTimes[0];
 
     // How long we spent this frame not doing anything, waiting for fences or vsync
-    nsecs_t idleDuration = 0;
+    Duration idleDuration = 0ns;
 
     // Most recent previous gpu end time in the current frame, probably from a prior display, used
     // as the start time for the next gpu operation if it ran over time since it probably blocked
-    std::optional<nsecs_t> previousValidGpuEndTime;
+    std::optional<TimePoint> previousValidGpuEndTime;
 
     // The currently estimated gpu end time for the frame,
     // used to accumulate gpu time as we iterate over the active displays
-    std::optional<nsecs_t> estimatedGpuEndTime;
+    std::optional<TimePoint> estimatedGpuEndTime;
 
     // If we're predicting at the start of the frame, we use last frame as our reference point
     // If we're predicting at the end of the frame, we use the current frame as a reference point
-    nsecs_t referenceFrameStartTime = (earlyHint ? mCommitStartTimes[-1] : mCommitStartTimes[0]);
+    TimePoint referenceFrameStartTime = (earlyHint ? mCommitStartTimes[-1] : mCommitStartTimes[0]);
 
     // When the prior frame should be presenting to the display
     // If we're predicting at the start of the frame, we use last frame's expected present time
     // If we're predicting at the end of the frame, the present fence time is already known
-    nsecs_t lastFramePresentTime = (earlyHint ? mExpectedPresentTimes[-1] : mLastPresentFenceTime);
+    TimePoint lastFramePresentTime =
+            (earlyHint ? mExpectedPresentTimes[-1] : mLastPresentFenceTime);
 
     // The timing info for the previously calculated display, if there was one
     std::optional<DisplayTimeline> previousDisplayReferenceTiming;
@@ -427,10 +424,10 @@
         // Track how long we spent waiting for the fence, can be excluded from the timing estimate
         idleDuration += estimatedTiming.probablyWaitsForPresentFence
                 ? lastFramePresentTime - estimatedTiming.presentFenceWaitStartTime
-                : 0;
+                : 0ns;
 
         // Track how long we spent waiting to present, can be excluded from the timing estimate
-        idleDuration += earlyHint ? 0 : referenceTiming.hwcPresentDelayDuration;
+        idleDuration += earlyHint ? 0ns : referenceTiming.hwcPresentDelayDuration;
 
         // Estimate the reference frame's gpu timing
         auto gpuTiming = displayData.estimateGpuTiming(previousValidGpuEndTime);
@@ -438,15 +435,15 @@
             previousValidGpuEndTime = gpuTiming->startTime + gpuTiming->duration;
 
             // Estimate the prediction frame's gpu end time from the reference frame
-            estimatedGpuEndTime =
-                    std::max(estimatedTiming.hwcPresentStartTime, estimatedGpuEndTime.value_or(0)) +
+            estimatedGpuEndTime = std::max(estimatedTiming.hwcPresentStartTime,
+                                           estimatedGpuEndTime.value_or(TimePoint{0ns})) +
                     gpuTiming->duration;
         }
         previousDisplayReferenceTiming = referenceTiming;
     }
-    ATRACE_INT64("Idle duration", idleDuration);
+    ATRACE_INT64("Idle duration", idleDuration.ns());
 
-    nsecs_t estimatedFlingerEndTime = earlyHint ? estimatedEndTime : mLastSfPresentEndTime;
+    TimePoint estimatedFlingerEndTime = earlyHint ? estimatedEndTime : mLastSfPresentEndTime;
 
     // Don't count time spent idly waiting in the estimate as we could do more work in that time
     estimatedEndTime -= idleDuration;
@@ -454,21 +451,22 @@
 
     // We finish the frame when both present and the gpu are done, so wait for the later of the two
     // Also add the frame delay duration since the target did not move while we were delayed
-    nsecs_t totalDuration = mFrameDelayDuration +
-            std::max(estimatedEndTime, estimatedGpuEndTime.value_or(0)) - mCommitStartTimes[0];
+    Duration totalDuration = mFrameDelayDuration +
+            std::max(estimatedEndTime, estimatedGpuEndTime.value_or(TimePoint{0ns})) -
+            mCommitStartTimes[0];
 
     // We finish SurfaceFlinger when post-composition finishes, so add that in here
-    nsecs_t flingerDuration =
+    Duration flingerDuration =
             estimatedFlingerEndTime + mLastPostcompDuration - mCommitStartTimes[0];
 
     // Combine the two timings into a single normalized one
-    nsecs_t combinedDuration = combineTimingEstimates(totalDuration, flingerDuration);
+    Duration combinedDuration = combineTimingEstimates(totalDuration, flingerDuration);
 
     return std::make_optional(combinedDuration);
 }
 
-nsecs_t PowerAdvisor::combineTimingEstimates(nsecs_t totalDuration, nsecs_t flingerDuration) {
-    nsecs_t targetDuration;
+Duration PowerAdvisor::combineTimingEstimates(Duration totalDuration, Duration flingerDuration) {
+    Duration targetDuration{0ns};
     {
         std::lock_guard lock(mPowerHalMutex);
         targetDuration = *getPowerHal()->getTargetWorkDuration();
@@ -477,17 +475,18 @@
 
     // Normalize total to the flinger target (vsync period) since that's how often we actually send
     // hints
-    nsecs_t normalizedTotalDuration = (targetDuration * totalDuration) / *mTotalFrameTargetDuration;
+    Duration normalizedTotalDuration = Duration::fromNs((targetDuration.ns() * totalDuration.ns()) /
+                                                        mTotalFrameTargetDuration->ns());
     return std::max(flingerDuration, normalizedTotalDuration);
 }
 
 PowerAdvisor::DisplayTimeline PowerAdvisor::DisplayTimeline::estimateTimelineFromReference(
-        nsecs_t fenceTime, nsecs_t displayStartTime) {
+        TimePoint fenceTime, TimePoint displayStartTime) {
     DisplayTimeline estimated;
     estimated.hwcPresentStartTime = displayStartTime;
 
     // We don't predict waiting for vsync alignment yet
-    estimated.hwcPresentDelayDuration = 0;
+    estimated.hwcPresentDelayDuration = 0ns;
 
     // How long we expect to run before we start waiting for the fence
     // For now just re-use last frame's post-present duration and assume it will not change much
@@ -502,12 +501,11 @@
 }
 
 PowerAdvisor::DisplayTimeline PowerAdvisor::DisplayTimingData::calculateDisplayTimeline(
-        nsecs_t fenceTime) {
+        TimePoint fenceTime) {
     DisplayTimeline timeline;
     // How long between calling hwc present and trying to wait on the fence
-    const nsecs_t fenceWaitStartDelay =
-            (skippedValidate ? kFenceWaitStartDelaySkippedValidate : kFenceWaitStartDelayValidated)
-                    .count();
+    const Duration fenceWaitStartDelay =
+            (skippedValidate ? kFenceWaitStartDelaySkippedValidate : kFenceWaitStartDelayValidated);
 
     // Did our reference frame wait for an appropriate vsync before calling into hwc
     const bool waitedOnHwcPresentTime = hwcPresentDelayedTime.has_value() &&
@@ -522,7 +520,7 @@
 
     // How long hwc present was delayed waiting for the next appropriate vsync
     timeline.hwcPresentDelayDuration =
-            (waitedOnHwcPresentTime ? *hwcPresentDelayedTime - *hwcPresentStartTime : 0);
+            (waitedOnHwcPresentTime ? *hwcPresentDelayedTime - *hwcPresentStartTime : 0ns);
     // When we started waiting for the present fence after calling into hwc present
     timeline.presentFenceWaitStartTime =
             timeline.hwcPresentStartTime + timeline.hwcPresentDelayDuration + fenceWaitStartDelay;
@@ -537,23 +535,26 @@
 }
 
 std::optional<PowerAdvisor::GpuTimeline> PowerAdvisor::DisplayTimingData::estimateGpuTiming(
-        std::optional<nsecs_t> previousEnd) {
+        std::optional<TimePoint> previousEndTime) {
     if (!(usedClientComposition && lastValidGpuStartTime.has_value() && gpuEndFenceTime)) {
         return std::nullopt;
     }
-    const nsecs_t latestGpuStartTime = std::max(previousEnd.value_or(0), *gpuStartTime);
-    const nsecs_t latestGpuEndTime = gpuEndFenceTime->getSignalTime();
-    nsecs_t gpuDuration = 0;
-    if (latestGpuEndTime != Fence::SIGNAL_TIME_INVALID &&
-        latestGpuEndTime != Fence::SIGNAL_TIME_PENDING) {
+    const TimePoint latestGpuStartTime =
+            std::max(previousEndTime.value_or(TimePoint{0ns}), *gpuStartTime);
+    const nsecs_t gpuEndFenceSignal = gpuEndFenceTime->getSignalTime();
+    Duration gpuDuration{0ns};
+    if (gpuEndFenceSignal != Fence::SIGNAL_TIME_INVALID &&
+        gpuEndFenceSignal != Fence::SIGNAL_TIME_PENDING) {
+        const TimePoint latestGpuEndTime = TimePoint::fromNs(gpuEndFenceSignal);
+
         // If we know how long the most recent gpu duration was, use that
         gpuDuration = latestGpuEndTime - latestGpuStartTime;
     } else if (lastValidGpuEndTime.has_value()) {
         // If we don't have the fence data, use the most recent information we do have
         gpuDuration = *lastValidGpuEndTime - *lastValidGpuStartTime;
-        if (latestGpuEndTime == Fence::SIGNAL_TIME_PENDING) {
+        if (gpuEndFenceSignal == Fence::SIGNAL_TIME_PENDING) {
             // If pending but went over the previous duration, use current time as the end
-            gpuDuration = std::max(gpuDuration, systemTime() - latestGpuStartTime);
+            gpuDuration = std::max(gpuDuration, Duration{TimePoint::now() - latestGpuStartTime});
         }
     }
     return GpuTimeline{.duration = gpuDuration, .startTime = latestGpuStartTime};
@@ -614,15 +615,15 @@
 
     bool startPowerHintSession() override { return false; }
 
-    void setTargetWorkDuration(int64_t) override {}
+    void setTargetWorkDuration(Duration) override {}
 
-    void sendActualWorkDuration(int64_t, nsecs_t) override {}
+    void sendActualWorkDuration(Duration, TimePoint) override {}
 
     bool shouldReconnectHAL() override { return false; }
 
     std::vector<int32_t> getPowerHintSessionThreadIds() override { return std::vector<int32_t>{}; }
 
-    std::optional<int64_t> getTargetWorkDuration() override { return std::nullopt; }
+    std::optional<Duration> getTargetWorkDuration() override { return std::nullopt; }
 
 private:
     const sp<V1_3::IPower> mPowerHal = nullptr;
@@ -727,9 +728,9 @@
         ALOGV("Cannot start power hint session, skipping");
         return false;
     }
-    auto ret =
-            mPowerHal->createHintSession(getpid(), static_cast<int32_t>(getuid()),
-                                         mPowerHintThreadIds, mTargetDuration, &mPowerHintSession);
+    auto ret = mPowerHal->createHintSession(getpid(), static_cast<int32_t>(getuid()),
+                                            mPowerHintThreadIds, mTargetDuration.ns(),
+                                            &mPowerHintSession);
     if (!ret.isOk()) {
         ALOGW("Failed to start power hint session with error: %s",
               ret.exceptionToString(ret.exceptionCode()).c_str());
@@ -739,14 +740,14 @@
     return isPowerHintSessionRunning();
 }
 
-void AidlPowerHalWrapper::setTargetWorkDuration(int64_t targetDuration) {
+void AidlPowerHalWrapper::setTargetWorkDuration(Duration targetDuration) {
     ATRACE_CALL();
     mTargetDuration = targetDuration;
-    if (sTraceHintSessionData) ATRACE_INT64("Time target", targetDuration);
+    if (sTraceHintSessionData) ATRACE_INT64("Time target", targetDuration.ns());
     if (isPowerHintSessionRunning() && (targetDuration != mLastTargetDurationSent)) {
-        ALOGV("Sending target time: %" PRId64 "ns", targetDuration);
+        ALOGV("Sending target time: %" PRId64 "ns", targetDuration.ns());
         mLastTargetDurationSent = targetDuration;
-        auto ret = mPowerHintSession->updateTargetWorkDuration(targetDuration);
+        auto ret = mPowerHintSession->updateTargetWorkDuration(targetDuration.ns());
         if (!ret.isOk()) {
             ALOGW("Failed to set power hint target work duration with error: %s",
                   ret.exceptionMessage().c_str());
@@ -755,33 +756,32 @@
     }
 }
 
-void AidlPowerHalWrapper::sendActualWorkDuration(int64_t actualDuration, nsecs_t timestamp) {
+void AidlPowerHalWrapper::sendActualWorkDuration(Duration actualDuration, TimePoint timestamp) {
     ATRACE_CALL();
-
-    if (actualDuration < 0 || !isPowerHintSessionRunning()) {
+    if (actualDuration < 0ns || !isPowerHintSessionRunning()) {
         ALOGV("Failed to send actual work duration, skipping");
         return;
     }
-    const nsecs_t reportedDuration = actualDuration;
-
-    mActualDuration = reportedDuration;
+    mActualDuration = actualDuration;
     WorkDuration duration;
-    duration.durationNanos = reportedDuration;
-    duration.timeStampNanos = timestamp;
+    duration.durationNanos = actualDuration.ns();
+    duration.timeStampNanos = timestamp.ns();
     mPowerHintQueue.push_back(duration);
 
     if (sTraceHintSessionData) {
-        ATRACE_INT64("Measured duration", actualDuration);
-        ATRACE_INT64("Target error term", actualDuration - mTargetDuration);
+        ATRACE_INT64("Measured duration", actualDuration.ns());
+        ATRACE_INT64("Target error term", Duration{actualDuration - mTargetDuration}.ns());
 
-        ATRACE_INT64("Reported duration", reportedDuration);
-        ATRACE_INT64("Reported target", mLastTargetDurationSent);
-        ATRACE_INT64("Reported target error term", reportedDuration - mLastTargetDurationSent);
+        ATRACE_INT64("Reported duration", actualDuration.ns());
+        ATRACE_INT64("Reported target", mLastTargetDurationSent.ns());
+        ATRACE_INT64("Reported target error term",
+                     Duration{actualDuration - mLastTargetDurationSent}.ns());
     }
 
     ALOGV("Sending actual work duration of: %" PRId64 " on reported target: %" PRId64
           " with error: %" PRId64,
-          reportedDuration, mLastTargetDurationSent, reportedDuration - mLastTargetDurationSent);
+          actualDuration.ns(), mLastTargetDurationSent.ns(),
+          Duration{actualDuration - mLastTargetDurationSent}.ns());
 
     auto ret = mPowerHintSession->reportActualWorkDuration(mPowerHintQueue);
     if (!ret.isOk()) {
@@ -800,7 +800,7 @@
     return mPowerHintThreadIds;
 }
 
-std::optional<int64_t> AidlPowerHalWrapper::getTargetWorkDuration() {
+std::optional<Duration> AidlPowerHalWrapper::getTargetWorkDuration() {
     return mTargetDuration;
 }
 
@@ -814,7 +814,7 @@
 
     // Grab old hint session values before we destroy any existing wrapper
     std::vector<int32_t> oldPowerHintSessionThreadIds;
-    std::optional<int64_t> oldTargetWorkDuration;
+    std::optional<Duration> oldTargetWorkDuration;
 
     if (mHalWrapper != nullptr) {
         oldPowerHintSessionThreadIds = mHalWrapper->getPowerHintSessionThreadIds();
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
index 776d043..1c9d123 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
@@ -27,6 +27,7 @@
 
 #include <android/hardware/power/IPower.h>
 #include <compositionengine/impl/OutputCompositionState.h>
+#include <scheduler/Time.h>
 #include <ui/DisplayIdentification.h>
 #include "../Scheduler/OneShotTimer.h"
 
@@ -53,7 +54,7 @@
     virtual bool supportsPowerHintSession() = 0;
     virtual bool isPowerHintSessionRunning() = 0;
     // Sends a power hint that updates to the target work duration for the frame
-    virtual void setTargetWorkDuration(nsecs_t targetDuration) = 0;
+    virtual void setTargetWorkDuration(Duration targetDuration) = 0;
     // Sends a power hint for the actual known work duration at the end of the frame
     virtual void sendActualWorkDuration() = 0;
     // Sends a power hint for the upcoming frame predicted from previous frame timing
@@ -65,33 +66,33 @@
     // Provides PowerAdvisor with a copy of the gpu fence so it can determine the gpu end time
     virtual void setGpuFenceTime(DisplayId displayId, std::unique_ptr<FenceTime>&& fenceTime) = 0;
     // Reports the start and end times of a hwc validate call this frame for a given display
-    virtual void setHwcValidateTiming(DisplayId displayId, nsecs_t validateStartTime,
-                                      nsecs_t validateEndTime) = 0;
+    virtual void setHwcValidateTiming(DisplayId displayId, TimePoint validateStartTime,
+                                      TimePoint validateEndTime) = 0;
     // Reports the start and end times of a hwc present call this frame for a given display
-    virtual void setHwcPresentTiming(DisplayId displayId, nsecs_t presentStartTime,
-                                     nsecs_t presentEndTime) = 0;
+    virtual void setHwcPresentTiming(DisplayId displayId, TimePoint presentStartTime,
+                                     TimePoint presentEndTime) = 0;
     // Reports the expected time that the current frame will present to the display
-    virtual void setExpectedPresentTime(nsecs_t expectedPresentTime) = 0;
+    virtual void setExpectedPresentTime(TimePoint expectedPresentTime) = 0;
     // Reports the most recent present fence time and end time once known
-    virtual void setSfPresentTiming(nsecs_t presentFenceTime, nsecs_t presentEndTime) = 0;
+    virtual void setSfPresentTiming(TimePoint presentFenceTime, TimePoint presentEndTime) = 0;
     // Reports whether a display used client composition this frame
     virtual void setRequiresClientComposition(DisplayId displayId,
                                               bool requiresClientComposition) = 0;
     // Reports whether a given display skipped validation this frame
     virtual void setSkippedValidate(DisplayId displayId, bool skipped) = 0;
     // Reports when a hwc present is delayed, and the time that it will resume
-    virtual void setHwcPresentDelayedTime(
-            DisplayId displayId, std::chrono::steady_clock::time_point earliestFrameStartTime) = 0;
+    virtual void setHwcPresentDelayedTime(DisplayId displayId,
+                                          TimePoint earliestFrameStartTime) = 0;
     // Reports the start delay for SurfaceFlinger this frame
-    virtual void setFrameDelay(nsecs_t frameDelayDuration) = 0;
+    virtual void setFrameDelay(Duration frameDelayDuration) = 0;
     // Reports the SurfaceFlinger commit start time this frame
-    virtual void setCommitStart(nsecs_t commitStartTime) = 0;
+    virtual void setCommitStart(TimePoint commitStartTime) = 0;
     // Reports the SurfaceFlinger composite end time this frame
-    virtual void setCompositeEnd(nsecs_t compositeEndTime) = 0;
+    virtual void setCompositeEnd(TimePoint compositeEndTime) = 0;
     // Reports the list of the currently active displays
     virtual void setDisplays(std::vector<DisplayId>& displayIds) = 0;
     // Sets the target duration for the entire pipeline including the gpu
-    virtual void setTotalFrameTargetWorkDuration(nsecs_t targetDuration) = 0;
+    virtual void setTotalFrameTargetWorkDuration(Duration targetDuration) = 0;
 };
 
 namespace impl {
@@ -111,11 +112,11 @@
         virtual void restartPowerHintSession() = 0;
         virtual void setPowerHintSessionThreadIds(const std::vector<int32_t>& threadIds) = 0;
         virtual bool startPowerHintSession() = 0;
-        virtual void setTargetWorkDuration(nsecs_t targetDuration) = 0;
-        virtual void sendActualWorkDuration(nsecs_t actualDuration, nsecs_t timestamp) = 0;
+        virtual void setTargetWorkDuration(Duration targetDuration) = 0;
+        virtual void sendActualWorkDuration(Duration actualDuration, TimePoint timestamp) = 0;
         virtual bool shouldReconnectHAL() = 0;
         virtual std::vector<int32_t> getPowerHintSessionThreadIds() = 0;
-        virtual std::optional<nsecs_t> getTargetWorkDuration() = 0;
+        virtual std::optional<Duration> getTargetWorkDuration() = 0;
     };
 
     PowerAdvisor(SurfaceFlinger& flinger);
@@ -129,29 +130,27 @@
     bool usePowerHintSession() override;
     bool supportsPowerHintSession() override;
     bool isPowerHintSessionRunning() override;
-    void setTargetWorkDuration(nsecs_t targetDuration) override;
+    void setTargetWorkDuration(Duration targetDuration) override;
     void sendActualWorkDuration() override;
     void sendPredictedWorkDuration() override;
     void enablePowerHint(bool enabled) override;
     bool startPowerHintSession(const std::vector<int32_t>& threadIds) override;
     void setGpuFenceTime(DisplayId displayId, std::unique_ptr<FenceTime>&& fenceTime);
-    void setHwcValidateTiming(DisplayId displayId, nsecs_t valiateStartTime,
-                              nsecs_t validateEndTime) override;
-    void setHwcPresentTiming(DisplayId displayId, nsecs_t presentStartTime,
-                             nsecs_t presentEndTime) override;
+    void setHwcValidateTiming(DisplayId displayId, TimePoint validateStartTime,
+                              TimePoint validateEndTime) override;
+    void setHwcPresentTiming(DisplayId displayId, TimePoint presentStartTime,
+                             TimePoint presentEndTime) override;
     void setSkippedValidate(DisplayId displayId, bool skipped) override;
     void setRequiresClientComposition(DisplayId displayId, bool requiresClientComposition) override;
-    void setExpectedPresentTime(nsecs_t expectedPresentTime) override;
-    void setSfPresentTiming(nsecs_t presentFenceTime, nsecs_t presentEndTime) override;
-    void setHwcPresentDelayedTime(
-            DisplayId displayId,
-            std::chrono::steady_clock::time_point earliestFrameStartTime) override;
+    void setExpectedPresentTime(TimePoint expectedPresentTime) override;
+    void setSfPresentTiming(TimePoint presentFenceTime, TimePoint presentEndTime) override;
+    void setHwcPresentDelayedTime(DisplayId displayId, TimePoint earliestFrameStartTime) override;
 
-    void setFrameDelay(nsecs_t frameDelayDuration) override;
-    void setCommitStart(nsecs_t commitStartTime) override;
-    void setCompositeEnd(nsecs_t compositeEndTime) override;
+    void setFrameDelay(Duration frameDelayDuration) override;
+    void setCommitStart(TimePoint commitStartTime) override;
+    void setCompositeEnd(TimePoint compositeEndTime) override;
     void setDisplays(std::vector<DisplayId>& displayIds) override;
-    void setTotalFrameTargetWorkDuration(nsecs_t targetDuration) override;
+    void setTotalFrameTargetWorkDuration(Duration targetDuration) override;
 
 private:
     friend class PowerAdvisorTest;
@@ -178,44 +177,45 @@
     // Higher-level timing data used for estimation
     struct DisplayTimeline {
         // The start of hwc present, or the start of validate if it happened there instead
-        nsecs_t hwcPresentStartTime = -1;
+        TimePoint hwcPresentStartTime;
         // The end of hwc present or validate, whichever one actually presented
-        nsecs_t hwcPresentEndTime = -1;
+        TimePoint hwcPresentEndTime;
         // How long the actual hwc present was delayed after hwcPresentStartTime
-        nsecs_t hwcPresentDelayDuration = 0;
+        Duration hwcPresentDelayDuration{0ns};
         // When we think we started waiting for the present fence after calling into hwc present and
         // after potentially waiting for the earliest present time
-        nsecs_t presentFenceWaitStartTime = -1;
+        TimePoint presentFenceWaitStartTime;
         // How long we ran after we finished waiting for the fence but before hwc present finished
-        nsecs_t postPresentFenceHwcPresentDuration = 0;
+        Duration postPresentFenceHwcPresentDuration{0ns};
         // Are we likely to have waited for the present fence during composition
         bool probablyWaitsForPresentFence = false;
         // Estimate one frame's timeline from that of a previous frame
-        DisplayTimeline estimateTimelineFromReference(nsecs_t fenceTime, nsecs_t displayStartTime);
+        DisplayTimeline estimateTimelineFromReference(TimePoint fenceTime,
+                                                      TimePoint displayStartTime);
     };
 
     struct GpuTimeline {
-        nsecs_t duration = 0;
-        nsecs_t startTime = -1;
+        Duration duration{0ns};
+        TimePoint startTime;
     };
 
     // Power hint session data recorded from the pipeline
     struct DisplayTimingData {
         std::unique_ptr<FenceTime> gpuEndFenceTime;
-        std::optional<nsecs_t> gpuStartTime;
-        std::optional<nsecs_t> lastValidGpuEndTime;
-        std::optional<nsecs_t> lastValidGpuStartTime;
-        std::optional<nsecs_t> hwcPresentStartTime;
-        std::optional<nsecs_t> hwcPresentEndTime;
-        std::optional<nsecs_t> hwcValidateStartTime;
-        std::optional<nsecs_t> hwcValidateEndTime;
-        std::optional<nsecs_t> hwcPresentDelayedTime;
+        std::optional<TimePoint> gpuStartTime;
+        std::optional<TimePoint> lastValidGpuEndTime;
+        std::optional<TimePoint> lastValidGpuStartTime;
+        std::optional<TimePoint> hwcPresentStartTime;
+        std::optional<TimePoint> hwcPresentEndTime;
+        std::optional<TimePoint> hwcValidateStartTime;
+        std::optional<TimePoint> hwcValidateEndTime;
+        std::optional<TimePoint> hwcPresentDelayedTime;
         bool usedClientComposition = false;
         bool skippedValidate = false;
         // Calculate high-level timing milestones from more granular display timing data
-        DisplayTimeline calculateDisplayTimeline(nsecs_t fenceTime);
+        DisplayTimeline calculateDisplayTimeline(TimePoint fenceTime);
         // Estimate the gpu duration for a given display from previous gpu timing data
-        std::optional<GpuTimeline> estimateGpuTiming(std::optional<nsecs_t> previousEnd);
+        std::optional<GpuTimeline> estimateGpuTiming(std::optional<TimePoint> previousEndTime);
     };
 
     template <class T, size_t N>
@@ -240,30 +240,31 @@
     };
 
     // Filter and sort the display ids by a given property
-    std::vector<DisplayId> getOrderedDisplayIds(std::optional<nsecs_t> DisplayTimingData::*sortBy);
+    std::vector<DisplayId> getOrderedDisplayIds(
+            std::optional<TimePoint> DisplayTimingData::*sortBy);
     // Estimates a frame's total work duration including gpu time.
     // Runs either at the beginning or end of a frame, using the most recent data available
-    std::optional<nsecs_t> estimateWorkDuration(bool earlyHint);
+    std::optional<Duration> estimateWorkDuration(bool earlyHint);
     // There are two different targets and actual work durations we care about,
     // this normalizes them together and takes the max of the two
-    nsecs_t combineTimingEstimates(nsecs_t totalDuration, nsecs_t flingerDuration);
+    Duration combineTimingEstimates(Duration totalDuration, Duration flingerDuration);
 
     std::unordered_map<DisplayId, DisplayTimingData> mDisplayTimingData;
 
     // Current frame's delay
-    nsecs_t mFrameDelayDuration = 0;
+    Duration mFrameDelayDuration{0ns};
     // Last frame's post-composition duration
-    nsecs_t mLastPostcompDuration = 0;
+    Duration mLastPostcompDuration{0ns};
     // Buffer of recent commit start times
-    RingBuffer<nsecs_t, 2> mCommitStartTimes;
+    RingBuffer<TimePoint, 2> mCommitStartTimes;
     // Buffer of recent expected present times
-    RingBuffer<nsecs_t, 2> mExpectedPresentTimes;
+    RingBuffer<TimePoint, 2> mExpectedPresentTimes;
     // Most recent present fence time, provided by SF after composition engine finishes presenting
-    nsecs_t mLastPresentFenceTime = -1;
+    TimePoint mLastPresentFenceTime;
     // Most recent composition engine present end time, returned with the present fence from SF
-    nsecs_t mLastSfPresentEndTime = -1;
+    TimePoint mLastSfPresentEndTime;
     // Target duration for the entire pipeline including gpu
-    std::optional<nsecs_t> mTotalFrameTargetDuration;
+    std::optional<Duration> mTotalFrameTargetDuration;
     // Updated list of display IDs
     std::vector<DisplayId> mDisplayIds;
 
@@ -273,11 +274,11 @@
 
     // An adjustable safety margin which pads the "actual" value sent to PowerHAL,
     // encouraging more aggressive boosting to give SurfaceFlinger a larger margin for error
-    static constexpr const std::chrono::nanoseconds kTargetSafetyMargin = 1ms;
+    static constexpr const Duration kTargetSafetyMargin{1ms};
 
     // How long we expect hwc to run after the present call until it waits for the fence
-    static constexpr const std::chrono::nanoseconds kFenceWaitStartDelayValidated = 150us;
-    static constexpr const std::chrono::nanoseconds kFenceWaitStartDelaySkippedValidate = 250us;
+    static constexpr const Duration kFenceWaitStartDelayValidated{150us};
+    static constexpr const Duration kFenceWaitStartDelaySkippedValidate{250us};
 };
 
 class AidlPowerHalWrapper : public PowerAdvisor::HalWrapper {
@@ -294,11 +295,11 @@
     void restartPowerHintSession() override;
     void setPowerHintSessionThreadIds(const std::vector<int32_t>& threadIds) override;
     bool startPowerHintSession() override;
-    void setTargetWorkDuration(nsecs_t targetDuration) override;
-    void sendActualWorkDuration(nsecs_t actualDuration, nsecs_t timestamp) override;
+    void setTargetWorkDuration(Duration targetDuration) override;
+    void sendActualWorkDuration(Duration actualDuration, TimePoint timestamp) override;
     bool shouldReconnectHAL() override;
     std::vector<int32_t> getPowerHintSessionThreadIds() override;
-    std::optional<nsecs_t> getTargetWorkDuration() override;
+    std::optional<Duration> getTargetWorkDuration() override;
 
 private:
     friend class AidlPowerHalWrapperTest;
@@ -319,15 +320,15 @@
     // Queue of actual durations saved to report
     std::vector<hardware::power::WorkDuration> mPowerHintQueue;
     // The latest values we have received for target and actual
-    nsecs_t mTargetDuration = kDefaultTarget.count();
-    std::optional<nsecs_t> mActualDuration;
+    Duration mTargetDuration = kDefaultTargetDuration;
+    std::optional<Duration> mActualDuration;
     // The list of thread ids, stored so we can restart the session from this class if needed
     std::vector<int32_t> mPowerHintThreadIds;
     bool mSupportsPowerHint = false;
-    nsecs_t mLastTargetDurationSent = kDefaultTarget.count();
+    Duration mLastTargetDurationSent = kDefaultTargetDuration;
     // Whether we should emit ATRACE_INT data for hint sessions
     static const bool sTraceHintSessionData;
-    static constexpr const std::chrono::nanoseconds kDefaultTarget = 16ms;
+    static constexpr Duration kDefaultTargetDuration{16ms};
 };
 
 } // namespace impl
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/Time.h b/services/surfaceflinger/Scheduler/include/scheduler/Time.h
index f00d456..2ca55d4 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/Time.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/Time.h
@@ -41,6 +41,8 @@
 
     static constexpr TimePoint fromNs(nsecs_t);
 
+    static TimePoint now() { return scheduler::SchedulerClock::now(); };
+
     nsecs_t ns() const;
 };
 
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 3acf203..3103792 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1056,7 +1056,7 @@
     }
 
     const auto& schedule = mScheduler->getVsyncSchedule();
-    outStats->vsyncTime = schedule.vsyncDeadlineAfter(scheduler::SchedulerClock::now()).ns();
+    outStats->vsyncTime = schedule.vsyncDeadlineAfter(TimePoint::now()).ns();
     outStats->vsyncPeriod = schedule.period().ns();
     return NO_ERROR;
 }
@@ -1972,7 +1972,7 @@
                                                           : calculateExpectedPresentTime(frameTime);
 
     ATRACE_FORMAT("%s %" PRId64 " vsyncIn %.2fms%s", __func__, vsyncId.value,
-                  ticks<std::milli, float>(mExpectedPresentTime - scheduler::SchedulerClock::now()),
+                  ticks<std::milli, float>(mExpectedPresentTime - TimePoint::now()),
                   mExpectedPresentTime == expectedVsyncTime ? "" : " (adjusted)");
 
     const Period vsyncPeriod = mScheduler->getVsyncSchedule().period();
@@ -2059,16 +2059,16 @@
             activeDisplay->getPowerMode() == hal::PowerMode::ON;
     if (mPowerHintSessionEnabled) {
         const auto& display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked()).get();
-        const nsecs_t vsyncPeriod = display->getActiveMode()->getVsyncPeriod();
-        mPowerAdvisor->setCommitStart(frameTime.ns());
-        mPowerAdvisor->setExpectedPresentTime(mExpectedPresentTime.ns());
+        const Period vsyncPeriod = Period::fromNs(display->getActiveMode()->getVsyncPeriod());
+        mPowerAdvisor->setCommitStart(frameTime);
+        mPowerAdvisor->setExpectedPresentTime(mExpectedPresentTime);
 
         // Frame delay is how long we should have minus how long we actually have.
         const Duration idealSfWorkDuration = mVsyncModulator->getVsyncConfig().sfWorkDuration;
         const Duration frameDelay = idealSfWorkDuration - (mExpectedPresentTime - frameTime);
 
-        mPowerAdvisor->setFrameDelay(frameDelay.ns());
-        mPowerAdvisor->setTotalFrameTargetWorkDuration(idealSfWorkDuration.ns());
+        mPowerAdvisor->setFrameDelay(frameDelay);
+        mPowerAdvisor->setTotalFrameTargetWorkDuration(idealSfWorkDuration);
         mPowerAdvisor->setTargetWorkDuration(vsyncPeriod);
 
         // Send early hint here to make sure there's not another frame pending
@@ -2228,8 +2228,9 @@
 
     // Send a power hint hint after presentation is finished
     if (mPowerHintSessionEnabled) {
-        mPowerAdvisor->setSfPresentTiming(mPreviousPresentFences[0].fenceTime->getSignalTime(),
-                                          systemTime());
+        mPowerAdvisor->setSfPresentTiming(TimePoint::fromNs(mPreviousPresentFences[0]
+                                                                    .fenceTime->getSignalTime()),
+                                          TimePoint::now());
         if (mPowerHintSessionMode.late) {
             mPowerAdvisor->sendActualWorkDuration();
         }
@@ -2279,7 +2280,7 @@
     }
 
     if (mPowerHintSessionEnabled) {
-        mPowerAdvisor->setCompositeEnd(systemTime());
+        mPowerAdvisor->setCompositeEnd(TimePoint::now());
     }
 }
 
@@ -2376,7 +2377,7 @@
     auto presentFenceTime = std::make_shared<FenceTime>(presentFence);
     mPreviousPresentFences[0] = {presentFence, presentFenceTime};
 
-    const TimePoint presentTime = scheduler::SchedulerClock::now();
+    const TimePoint presentTime = TimePoint::now();
 
     // Set presentation information before calling Layer::releasePendingBuffer, such that jank
     // information from previous' frame classification is already available when sending jank info
diff --git a/services/surfaceflinger/tests/unittests/AidlPowerHalWrapperTest.cpp b/services/surfaceflinger/tests/unittests/AidlPowerHalWrapperTest.cpp
index ab38b29..513f779 100644
--- a/services/surfaceflinger/tests/unittests/AidlPowerHalWrapperTest.cpp
+++ b/services/surfaceflinger/tests/unittests/AidlPowerHalWrapperTest.cpp
@@ -69,7 +69,8 @@
 void AidlPowerHalWrapperTest::sendActualWorkDurationGroup(std::vector<WorkDuration> durations) {
     for (size_t i = 0; i < durations.size(); i++) {
         auto duration = durations[i];
-        mWrapper->sendActualWorkDuration(duration.durationNanos, duration.timeStampNanos);
+        mWrapper->sendActualWorkDuration(Duration::fromNs(duration.durationNanos),
+                                         TimePoint::fromNs(duration.timeStampNanos));
     }
 }
 
@@ -155,13 +156,13 @@
 
     for (const auto& test : testCases) {
         // reset to 100ms baseline
-        mWrapper->setTargetWorkDuration(1);
-        mWrapper->setTargetWorkDuration(base.count());
+        mWrapper->setTargetWorkDuration(1ns);
+        mWrapper->setTargetWorkDuration(base);
 
-        auto target = test.first;
+        std::chrono::nanoseconds target = test.first;
         EXPECT_CALL(*mMockSession.get(), updateTargetWorkDuration(target.count()))
                 .Times(test.second ? 1 : 0);
-        mWrapper->setTargetWorkDuration(target.count());
+        mWrapper->setTargetWorkDuration(target);
         verifyAndClearExpectations();
     }
 }
@@ -178,7 +179,7 @@
 
     EXPECT_CALL(*mMockSession.get(), updateTargetWorkDuration(1))
             .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_ILLEGAL_STATE)));
-    mWrapper->setTargetWorkDuration(1);
+    mWrapper->setTargetWorkDuration(1ns);
     EXPECT_TRUE(mWrapper->shouldReconnectHAL());
 }
 
diff --git a/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp b/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp
index 8711a42..2d66d3c 100644
--- a/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp
@@ -39,15 +39,15 @@
 public:
     void SetUp() override;
     void startPowerHintSession();
-    void fakeBasicFrameTiming(nsecs_t startTime, nsecs_t vsyncPeriod);
-    void setExpectedTiming(nsecs_t startTime, nsecs_t vsyncPeriod);
-    nsecs_t getFenceWaitDelayDuration(bool skipValidate);
+    void fakeBasicFrameTiming(TimePoint startTime, Duration vsyncPeriod);
+    void setExpectedTiming(Duration totalFrameTargetDuration, TimePoint expectedPresentTime);
+    Duration getFenceWaitDelayDuration(bool skipValidate);
 
 protected:
     TestableSurfaceFlinger mFlinger;
     std::unique_ptr<PowerAdvisor> mPowerAdvisor;
     NiceMock<MockAidlPowerHalWrapper>* mMockAidlWrapper;
-    nsecs_t kErrorMargin = std::chrono::nanoseconds(1ms).count();
+    Duration kErrorMargin = 1ms;
 };
 
 void PowerAdvisorTest::SetUp() FTL_FAKE_GUARD(mPowerAdvisor->mPowerHalMutex) {
@@ -67,21 +67,21 @@
     mPowerAdvisor->startPowerHintSession(threadIds);
 }
 
-void PowerAdvisorTest::setExpectedTiming(nsecs_t totalFrameTarget, nsecs_t expectedPresentTime) {
-    mPowerAdvisor->setTotalFrameTargetWorkDuration(totalFrameTarget);
+void PowerAdvisorTest::setExpectedTiming(Duration totalFrameTargetDuration,
+                                         TimePoint expectedPresentTime) {
+    mPowerAdvisor->setTotalFrameTargetWorkDuration(totalFrameTargetDuration);
     mPowerAdvisor->setExpectedPresentTime(expectedPresentTime);
 }
 
-void PowerAdvisorTest::fakeBasicFrameTiming(nsecs_t startTime, nsecs_t vsyncPeriod) {
+void PowerAdvisorTest::fakeBasicFrameTiming(TimePoint startTime, Duration vsyncPeriod) {
     mPowerAdvisor->setCommitStart(startTime);
-    mPowerAdvisor->setFrameDelay(0);
+    mPowerAdvisor->setFrameDelay(0ns);
     mPowerAdvisor->setTargetWorkDuration(vsyncPeriod);
 }
 
-nsecs_t PowerAdvisorTest::getFenceWaitDelayDuration(bool skipValidate) {
+Duration PowerAdvisorTest::getFenceWaitDelayDuration(bool skipValidate) {
     return (skipValidate ? PowerAdvisor::kFenceWaitStartDelaySkippedValidate
-                         : PowerAdvisor::kFenceWaitStartDelayValidated)
-            .count();
+                         : PowerAdvisor::kFenceWaitStartDelayValidated);
 }
 
 namespace {
@@ -93,11 +93,11 @@
     std::vector<DisplayId> displayIds{PhysicalDisplayId::fromPort(42u)};
 
     // 60hz
-    const nsecs_t vsyncPeriod = std::chrono::nanoseconds(1s).count() / 60;
-    const nsecs_t presentDuration = std::chrono::nanoseconds(5ms).count();
-    const nsecs_t postCompDuration = std::chrono::nanoseconds(1ms).count();
+    const Duration vsyncPeriod{std::chrono::nanoseconds(1s) / 60};
+    const Duration presentDuration = 5ms;
+    const Duration postCompDuration = 1ms;
 
-    nsecs_t startTime = 100;
+    TimePoint startTime{100ns};
 
     // advisor only starts on frame 2 so do an initial no-op frame
     fakeBasicFrameTiming(startTime, vsyncPeriod);
@@ -109,14 +109,14 @@
     // increment the frame
     startTime += vsyncPeriod;
 
-    const nsecs_t expectedDuration = kErrorMargin + presentDuration + postCompDuration;
+    const Duration expectedDuration = kErrorMargin + presentDuration + postCompDuration;
     EXPECT_CALL(*mMockAidlWrapper, sendActualWorkDuration(Eq(expectedDuration), _)).Times(1);
 
     fakeBasicFrameTiming(startTime, vsyncPeriod);
     setExpectedTiming(vsyncPeriod, startTime + vsyncPeriod);
     mPowerAdvisor->setDisplays(displayIds);
-    mPowerAdvisor->setHwcValidateTiming(displayIds[0], startTime + 1000000, startTime + 1500000);
-    mPowerAdvisor->setHwcPresentTiming(displayIds[0], startTime + 2000000, startTime + 2500000);
+    mPowerAdvisor->setHwcValidateTiming(displayIds[0], startTime + 1ms, startTime + 1500us);
+    mPowerAdvisor->setHwcPresentTiming(displayIds[0], startTime + 2ms, startTime + 2500us);
     mPowerAdvisor->setSfPresentTiming(startTime, startTime + presentDuration);
     mPowerAdvisor->sendActualWorkDuration();
 }
@@ -128,12 +128,12 @@
     std::vector<DisplayId> displayIds{PhysicalDisplayId::fromPort(42u)};
 
     // 60hz
-    const nsecs_t vsyncPeriod = std::chrono::nanoseconds(1s).count() / 60;
-    const nsecs_t presentDuration = std::chrono::nanoseconds(5ms).count();
-    const nsecs_t postCompDuration = std::chrono::nanoseconds(1ms).count();
-    const nsecs_t hwcBlockedDuration = std::chrono::nanoseconds(500us).count();
+    const Duration vsyncPeriod{std::chrono::nanoseconds(1s) / 60};
+    const Duration presentDuration = 5ms;
+    const Duration postCompDuration = 1ms;
+    const Duration hwcBlockedDuration = 500us;
 
-    nsecs_t startTime = 100;
+    TimePoint startTime{100ns};
 
     // advisor only starts on frame 2 so do an initial no-op frame
     fakeBasicFrameTiming(startTime, vsyncPeriod);
@@ -145,17 +145,17 @@
     // increment the frame
     startTime += vsyncPeriod;
 
-    const nsecs_t expectedDuration = kErrorMargin + presentDuration +
+    const Duration expectedDuration = kErrorMargin + presentDuration +
             getFenceWaitDelayDuration(false) - hwcBlockedDuration + postCompDuration;
     EXPECT_CALL(*mMockAidlWrapper, sendActualWorkDuration(Eq(expectedDuration), _)).Times(1);
 
     fakeBasicFrameTiming(startTime, vsyncPeriod);
     setExpectedTiming(vsyncPeriod, startTime + vsyncPeriod);
     mPowerAdvisor->setDisplays(displayIds);
-    mPowerAdvisor->setHwcValidateTiming(displayIds[0], startTime + 1000000, startTime + 1500000);
-    mPowerAdvisor->setHwcPresentTiming(displayIds[0], startTime + 2000000, startTime + 3000000);
+    mPowerAdvisor->setHwcValidateTiming(displayIds[0], startTime + 1ms, startTime + 1500us);
+    mPowerAdvisor->setHwcPresentTiming(displayIds[0], startTime + 2ms, startTime + 3ms);
     // now report the fence as having fired during the display HWC time
-    mPowerAdvisor->setSfPresentTiming(startTime + 2000000 + hwcBlockedDuration,
+    mPowerAdvisor->setSfPresentTiming(startTime + 2ms + hwcBlockedDuration,
                                       startTime + presentDuration);
     mPowerAdvisor->sendActualWorkDuration();
 }
@@ -168,12 +168,12 @@
                                       GpuVirtualDisplayId(1)};
 
     // 60hz
-    const nsecs_t vsyncPeriod = std::chrono::nanoseconds(1s).count() / 60;
+    const Duration vsyncPeriod{std::chrono::nanoseconds(1s) / 60};
     // make present duration much later than the hwc display by itself will account for
-    const nsecs_t presentDuration = std::chrono::nanoseconds(10ms).count();
-    const nsecs_t postCompDuration = std::chrono::nanoseconds(1ms).count();
+    const Duration presentDuration{10ms};
+    const Duration postCompDuration{1ms};
 
-    nsecs_t startTime = 100;
+    TimePoint startTime{100ns};
 
     // advisor only starts on frame 2 so do an initial no-op frame
     fakeBasicFrameTiming(startTime, vsyncPeriod);
@@ -185,7 +185,7 @@
     // increment the frame
     startTime += vsyncPeriod;
 
-    const nsecs_t expectedDuration = kErrorMargin + presentDuration + postCompDuration;
+    const Duration expectedDuration = kErrorMargin + presentDuration + postCompDuration;
     EXPECT_CALL(*mMockAidlWrapper, sendActualWorkDuration(Eq(expectedDuration), _)).Times(1);
 
     fakeBasicFrameTiming(startTime, vsyncPeriod);
@@ -193,8 +193,8 @@
     mPowerAdvisor->setDisplays(displayIds);
 
     // don't report timing for the gpu displays since they don't use hwc
-    mPowerAdvisor->setHwcValidateTiming(displayIds[0], startTime + 1000000, startTime + 1500000);
-    mPowerAdvisor->setHwcPresentTiming(displayIds[0], startTime + 2000000, startTime + 2500000);
+    mPowerAdvisor->setHwcValidateTiming(displayIds[0], startTime + 1ms, startTime + 1500us);
+    mPowerAdvisor->setHwcPresentTiming(displayIds[0], startTime + 2ms, startTime + 2500us);
     mPowerAdvisor->setSfPresentTiming(startTime, startTime + presentDuration);
     mPowerAdvisor->sendActualWorkDuration();
 }
diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockAidlPowerHalWrapper.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockAidlPowerHalWrapper.h
index 657ced3..c2c3d77 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockAidlPowerHalWrapper.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockAidlPowerHalWrapper.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <gmock/gmock.h>
+#include <scheduler/Time.h>
 
 #include "DisplayHardware/PowerAdvisor.h"
 
@@ -42,8 +43,8 @@
     MOCK_METHOD(void, setPowerHintSessionThreadIds, (const std::vector<int32_t>& threadIds),
                 (override));
     MOCK_METHOD(bool, startPowerHintSession, (), (override));
-    MOCK_METHOD(void, setTargetWorkDuration, (nsecs_t targetDuration), (override));
-    MOCK_METHOD(void, sendActualWorkDuration, (nsecs_t actualDuration, nsecs_t timestamp),
+    MOCK_METHOD(void, setTargetWorkDuration, (Duration targetDuration), (override));
+    MOCK_METHOD(void, sendActualWorkDuration, (Duration actualDuration, TimePoint timestamp),
                 (override));
     MOCK_METHOD(bool, shouldReconnectHAL, (), (override));
 };
diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockPowerAdvisor.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockPowerAdvisor.h
index aede250..fb1b394 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockPowerAdvisor.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockPowerAdvisor.h
@@ -36,7 +36,7 @@
     MOCK_METHOD(bool, usePowerHintSession, (), (override));
     MOCK_METHOD(bool, supportsPowerHintSession, (), (override));
     MOCK_METHOD(bool, isPowerHintSessionRunning, (), (override));
-    MOCK_METHOD(void, setTargetWorkDuration, (int64_t targetDuration), (override));
+    MOCK_METHOD(void, setTargetWorkDuration, (Duration targetDuration), (override));
     MOCK_METHOD(void, sendActualWorkDuration, (), (override));
     MOCK_METHOD(void, sendPredictedWorkDuration, (), (override));
     MOCK_METHOD(void, enablePowerHint, (bool enabled), (override));
@@ -44,25 +44,24 @@
     MOCK_METHOD(void, setGpuFenceTime,
                 (DisplayId displayId, std::unique_ptr<FenceTime>&& fenceTime), (override));
     MOCK_METHOD(void, setHwcValidateTiming,
-                (DisplayId displayId, nsecs_t valiateStartTime, nsecs_t validateEndTime),
+                (DisplayId displayId, TimePoint validateStartTime, TimePoint validateEndTime),
                 (override));
     MOCK_METHOD(void, setHwcPresentTiming,
-                (DisplayId displayId, nsecs_t presentStartTime, nsecs_t presentEndTime),
+                (DisplayId displayId, TimePoint presentStartTime, TimePoint presentEndTime),
                 (override));
     MOCK_METHOD(void, setSkippedValidate, (DisplayId displayId, bool skipped), (override));
     MOCK_METHOD(void, setRequiresClientComposition,
                 (DisplayId displayId, bool requiresClientComposition), (override));
-    MOCK_METHOD(void, setExpectedPresentTime, (nsecs_t expectedPresentTime), (override));
-    MOCK_METHOD(void, setSfPresentTiming, (nsecs_t presentFenceTime, nsecs_t presentEndTime),
+    MOCK_METHOD(void, setExpectedPresentTime, (TimePoint expectedPresentTime), (override));
+    MOCK_METHOD(void, setSfPresentTiming, (TimePoint presentFenceTime, TimePoint presentEndTime),
                 (override));
     MOCK_METHOD(void, setHwcPresentDelayedTime,
-                (DisplayId displayId,
-                 std::chrono::steady_clock::time_point earliestFrameStartTime));
-    MOCK_METHOD(void, setFrameDelay, (nsecs_t frameDelayDuration), (override));
-    MOCK_METHOD(void, setCommitStart, (nsecs_t commitStartTime), (override));
-    MOCK_METHOD(void, setCompositeEnd, (nsecs_t compositeEndtime), (override));
+                (DisplayId displayId, TimePoint earliestFrameStartTime));
+    MOCK_METHOD(void, setFrameDelay, (Duration frameDelayDuration), (override));
+    MOCK_METHOD(void, setCommitStart, (TimePoint commitStartTime), (override));
+    MOCK_METHOD(void, setCompositeEnd, (TimePoint compositeEndTime), (override));
     MOCK_METHOD(void, setDisplays, (std::vector<DisplayId> & displayIds), (override));
-    MOCK_METHOD(void, setTotalFrameTargetWorkDuration, (int64_t targetDuration), (override));
+    MOCK_METHOD(void, setTotalFrameTargetWorkDuration, (Duration targetDuration), (override));
 };
 
 } // namespace android::Hwc2::mock