diff --git a/services/core/java/com/android/server/am/AppExitInfoTracker.java b/services/core/java/com/android/server/am/AppExitInfoTracker.java
index 60aba277569ba..cba6b92bf4405 100644
--- a/services/core/java/com/android/server/am/AppExitInfoTracker.java
+++ b/services/core/java/com/android/server/am/AppExitInfoTracker.java
@@ -708,7 +708,7 @@ public final class AppExitInfoTracker {
 
     void dumpHistoryProcessExitInfo(PrintWriter pw, String packageName) {
         pw.println("ACTIVITY MANAGER LRU PROCESSES (dumpsys activity exit-info)");
-        SimpleDateFormat sdf = new SimpleDateFormat();
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
         synchronized (mLock) {
             pw.println("Last Timestamp of Persistence Into Persistent Storage: "
                     + sdf.format(new Date(mLastAppExitInfoPersistTimestamp)));