diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 1df9c88e..37f42a4 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -414,6 +414,13 @@
 }
 
 flag {
+   name: "clock_reactive_variants"
+   namespace: "systemui"
+   description: "Add reactive variant fonts to some clocks"
+   bug: "343495953"
+}
+
+flag {
    name: "fast_unlock_transition"
    namespace: "systemui"
    description: "Faster wallpaper unlock transition"
diff --git a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt
index b392014..502dbe3 100644
--- a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt
+++ b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt
@@ -239,6 +239,8 @@
     }
 
     inner class DefaultClockEvents : ClockEvents {
+        override var isReactiveTouchInteractionEnabled: Boolean = false
+
         override fun onTimeFormatChanged(is24Hr: Boolean) =
             clocks.forEach { it.refreshFormat(is24Hr) }
 
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/clocks/ClockProviderPlugin.kt b/packages/SystemUI/plugin/src/com/android/systemui/plugins/clocks/ClockProviderPlugin.kt
index 629c96c..c7998f0 100644
--- a/packages/SystemUI/plugin/src/com/android/systemui/plugins/clocks/ClockProviderPlugin.kt
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/clocks/ClockProviderPlugin.kt
@@ -153,6 +153,9 @@
 
 /** Events that should call when various rendering parameters change */
 interface ClockEvents {
+    /** Set to enable or disable swipe interaction */
+    var isReactiveTouchInteractionEnabled: Boolean
+
     /** Call whenever timezone changes */
     fun onTimeZoneChanged(timeZone: TimeZone)