diff --git a/service/src/com/android/server/connectivity/KeepaliveStatsTracker.java b/service/src/com/android/server/connectivity/KeepaliveStatsTracker.java
index 7a8b41b68f..48af9fa25a 100644
--- a/service/src/com/android/server/connectivity/KeepaliveStatsTracker.java
+++ b/service/src/com/android/server/connectivity/KeepaliveStatsTracker.java
@@ -74,9 +74,10 @@ import java.util.concurrent.atomic.AtomicBoolean;
 public class KeepaliveStatsTracker {
     private static final String TAG = KeepaliveStatsTracker.class.getSimpleName();
     private static final int INVALID_KEEPALIVE_ID = -1;
-    // 1 hour acceptable deviation in metrics collection duration time.
+    // 2 hour acceptable deviation in metrics collection duration time to account for the 1 hour
+    // window of AlarmManager.
     private static final long MAX_EXPECTED_DURATION_MS =
-            AutomaticOnOffKeepaliveTracker.METRICS_COLLECTION_DURATION_MS + 1 * 60 * 60 * 1_000L;
+            AutomaticOnOffKeepaliveTracker.METRICS_COLLECTION_DURATION_MS + 2 * 60 * 60 * 1_000L;
 
     @NonNull private final Handler mConnectivityServiceHandler;
     @NonNull private final Dependencies mDependencies;
diff --git a/tests/unit/java/com/android/server/connectivity/KeepaliveStatsTrackerTest.java b/tests/unit/java/com/android/server/connectivity/KeepaliveStatsTrackerTest.java
index 1b964e2a51..294dacbad3 100644
--- a/tests/unit/java/com/android/server/connectivity/KeepaliveStatsTrackerTest.java
+++ b/tests/unit/java/com/android/server/connectivity/KeepaliveStatsTrackerTest.java
@@ -1297,8 +1297,8 @@ public class KeepaliveStatsTrackerTest {
 
         assertTrue(mKeepaliveStatsTracker.allMetricsExpected(dailyKeepaliveInfoReported));
 
-        // Write time after 26 hours.
-        final int writeTime2 = 26 * 60 * 60 * 1000;
+        // Write time after 27 hours.
+        final int writeTime2 = 27 * 60 * 60 * 1000;
         setElapsedRealtime(writeTime2);
 
         visibleOnHandlerThread(mTestHandler, () -> mKeepaliveStatsTracker.writeAndResetMetrics());