diff --git a/core/tests/coretests/src/android/app/timezonedetector/ParcelableTestSupport.java b/core/tests/coretests/src/android/app/time/ParcelableTestSupport.java
similarity index 82%
rename from core/tests/coretests/src/android/app/timezonedetector/ParcelableTestSupport.java
rename to core/tests/coretests/src/android/app/time/ParcelableTestSupport.java
index 0073d86873dae..13e5e14ce01c6 100644
--- a/core/tests/coretests/src/android/app/timezonedetector/ParcelableTestSupport.java
+++ b/core/tests/coretests/src/android/app/time/ParcelableTestSupport.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package android.app.timezonedetector;
+package android.app.time;
 
 import static org.junit.Assert.assertEquals;
 
@@ -48,6 +48,13 @@ public final class ParcelableTestSupport {
     }
 
     public static <T extends Parcelable> void assertRoundTripParcelable(T instance) {
-        assertEquals(instance, roundTripParcelable(instance));
+        assertEqualsAndHashCode(instance, roundTripParcelable(instance));
+    }
+
+    /** Asserts that the objects are equal and return identical hash codes. */
+    public static void assertEqualsAndHashCode(Object one, Object two) {
+        assertEquals(one, two);
+        assertEquals(two, one);
+        assertEquals(one.hashCode(), two.hashCode());
     }
 }
diff --git a/core/tests/coretests/src/android/app/time/TimeCapabilitiesTest.java b/core/tests/coretests/src/android/app/time/TimeCapabilitiesTest.java
index c9b96c6071ee4..1a276ad0b3c32 100644
--- a/core/tests/coretests/src/android/app/time/TimeCapabilitiesTest.java
+++ b/core/tests/coretests/src/android/app/time/TimeCapabilitiesTest.java
@@ -21,7 +21,8 @@ import static android.app.time.Capabilities.CAPABILITY_NOT_ALLOWED;
 import static android.app.time.Capabilities.CAPABILITY_NOT_APPLICABLE;
 import static android.app.time.Capabilities.CAPABILITY_NOT_SUPPORTED;
 import static android.app.time.Capabilities.CAPABILITY_POSSESSED;
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertEqualsAndHashCode;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
 
 import static com.google.common.truth.Truth.assertThat;
 
@@ -55,7 +56,7 @@ public class TimeCapabilitiesTest {
         {
             TimeCapabilities one = builder1.build();
             TimeCapabilities two = builder2.build();
-            assertEquals(one, two);
+            assertEqualsAndHashCode(one, two);
         }
 
         builder2.setConfigureAutoDetectionEnabledCapability(CAPABILITY_NOT_ALLOWED);
@@ -69,7 +70,7 @@ public class TimeCapabilitiesTest {
         {
             TimeCapabilities one = builder1.build();
             TimeCapabilities two = builder2.build();
-            assertEquals(one, two);
+            assertEqualsAndHashCode(one, two);
         }
 
         builder2.setSetManualTimeCapability(CAPABILITY_NOT_ALLOWED);
@@ -83,7 +84,7 @@ public class TimeCapabilitiesTest {
         {
             TimeCapabilities one = builder1.build();
             TimeCapabilities two = builder2.build();
-            assertEquals(one, two);
+            assertEqualsAndHashCode(one, two);
         }
     }
 
diff --git a/core/tests/coretests/src/android/app/time/TimeStateTest.java b/core/tests/coretests/src/android/app/time/TimeStateTest.java
index bce09099e4d32..25e6e2b662192 100644
--- a/core/tests/coretests/src/android/app/time/TimeStateTest.java
+++ b/core/tests/coretests/src/android/app/time/TimeStateTest.java
@@ -16,7 +16,8 @@
 
 package android.app.time;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertEqualsAndHashCode;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
 import static android.app.timezonedetector.ShellCommandTestSupport.createShellCommandWithArgsAndOptions;
 
 import static org.junit.Assert.assertEquals;
@@ -52,11 +53,6 @@ public class TimeStateTest {
         assertNotEquals(time1False_1, time2False);
     }
 
-    private static void assertEqualsAndHashCode(Object one, Object two) {
-        assertEquals(one, two);
-        assertEquals(one.hashCode(), two.hashCode());
-    }
-
     @Test
     public void testParceling() {
         UnixEpochTime time = new UnixEpochTime(1, 2);
diff --git a/core/tests/coretests/src/android/app/time/TimeZoneCapabilitiesTest.java b/core/tests/coretests/src/android/app/time/TimeZoneCapabilitiesTest.java
index 3f7da8a6fbd06..8bed31f4821a5 100644
--- a/core/tests/coretests/src/android/app/time/TimeZoneCapabilitiesTest.java
+++ b/core/tests/coretests/src/android/app/time/TimeZoneCapabilitiesTest.java
@@ -18,7 +18,7 @@ package android.app.time;
 
 import static android.app.time.Capabilities.CAPABILITY_NOT_ALLOWED;
 import static android.app.time.Capabilities.CAPABILITY_POSSESSED;
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
 
 import static com.google.common.truth.Truth.assertThat;
 
diff --git a/core/tests/coretests/src/android/app/time/TimeZoneStateTest.java b/core/tests/coretests/src/android/app/time/TimeZoneStateTest.java
index 35a9dbc200e43..595b7006c0e57 100644
--- a/core/tests/coretests/src/android/app/time/TimeZoneStateTest.java
+++ b/core/tests/coretests/src/android/app/time/TimeZoneStateTest.java
@@ -16,7 +16,8 @@
 
 package android.app.time;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertEqualsAndHashCode;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
 import static android.app.timezonedetector.ShellCommandTestSupport.createShellCommandWithArgsAndOptions;
 
 import static org.junit.Assert.assertEquals;
@@ -52,11 +53,6 @@ public class TimeZoneStateTest {
         assertNotEquals(zone1False_1, zone2False);
     }
 
-    private static void assertEqualsAndHashCode(Object one, Object two) {
-        assertEquals(one, two);
-        assertEquals(one.hashCode(), two.hashCode());
-    }
-
     @Test
     public void testParceling() {
         assertRoundTripParcelable(new TimeZoneState("Europe/London", true));
diff --git a/core/tests/coretests/src/android/app/timedetector/ManualTimeSuggestionTest.java b/core/tests/coretests/src/android/app/timedetector/ManualTimeSuggestionTest.java
index 0c7c8c1803eb0..28da164952ec7 100644
--- a/core/tests/coretests/src/android/app/timedetector/ManualTimeSuggestionTest.java
+++ b/core/tests/coretests/src/android/app/timedetector/ManualTimeSuggestionTest.java
@@ -16,8 +16,8 @@
 
 package android.app.timedetector;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
-import static android.app.timezonedetector.ParcelableTestSupport.roundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.roundTripParcelable;
 import static android.app.timezonedetector.ShellCommandTestSupport.createShellCommandWithArgsAndOptions;
 
 import static org.junit.Assert.assertEquals;
diff --git a/core/tests/coretests/src/android/app/timedetector/TelephonyTimeSuggestionTest.java b/core/tests/coretests/src/android/app/timedetector/TelephonyTimeSuggestionTest.java
index 26cb902319312..e9ca069d372d7 100644
--- a/core/tests/coretests/src/android/app/timedetector/TelephonyTimeSuggestionTest.java
+++ b/core/tests/coretests/src/android/app/timedetector/TelephonyTimeSuggestionTest.java
@@ -16,8 +16,8 @@
 
 package android.app.timedetector;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
-import static android.app.timezonedetector.ParcelableTestSupport.roundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.roundTripParcelable;
 import static android.app.timezonedetector.ShellCommandTestSupport.createShellCommandWithArgsAndOptions;
 
 import static org.junit.Assert.assertEquals;
diff --git a/core/tests/coretests/src/android/app/timezonedetector/ManualTimeZoneSuggestionTest.java b/core/tests/coretests/src/android/app/timezonedetector/ManualTimeZoneSuggestionTest.java
index 17838bb19a8fe..b5bdea71c3b65 100644
--- a/core/tests/coretests/src/android/app/timezonedetector/ManualTimeZoneSuggestionTest.java
+++ b/core/tests/coretests/src/android/app/timezonedetector/ManualTimeZoneSuggestionTest.java
@@ -16,8 +16,8 @@
 
 package android.app.timezonedetector;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
-import static android.app.timezonedetector.ParcelableTestSupport.roundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.roundTripParcelable;
 import static android.app.timezonedetector.ShellCommandTestSupport.createShellCommandWithArgsAndOptions;
 
 import static org.junit.Assert.assertEquals;
diff --git a/core/tests/coretests/src/android/app/timezonedetector/TelephonyTimeZoneSuggestionTest.java b/core/tests/coretests/src/android/app/timezonedetector/TelephonyTimeZoneSuggestionTest.java
index 28009d4168ad0..d5dcac2b2aee3 100644
--- a/core/tests/coretests/src/android/app/timezonedetector/TelephonyTimeZoneSuggestionTest.java
+++ b/core/tests/coretests/src/android/app/timezonedetector/TelephonyTimeZoneSuggestionTest.java
@@ -16,8 +16,8 @@
 
 package android.app.timezonedetector;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
-import static android.app.timezonedetector.ParcelableTestSupport.roundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.roundTripParcelable;
 import static android.app.timezonedetector.ShellCommandTestSupport.createShellCommandWithArgsAndOptions;
 
 import static org.junit.Assert.assertEquals;
diff --git a/core/tests/coretests/src/android/service/timezone/TimeZoneProviderEventTest.java b/core/tests/coretests/src/android/service/timezone/TimeZoneProviderEventTest.java
index 86ebdf3c07592..7f772dd3b12de 100644
--- a/core/tests/coretests/src/android/service/timezone/TimeZoneProviderEventTest.java
+++ b/core/tests/coretests/src/android/service/timezone/TimeZoneProviderEventTest.java
@@ -16,7 +16,7 @@
 
 package android.service.timezone;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
 import static android.service.timezone.TimeZoneProviderEvent.EVENT_TYPE_PERMANENT_FAILURE;
 import static android.service.timezone.TimeZoneProviderEvent.EVENT_TYPE_SUGGESTION;
 import static android.service.timezone.TimeZoneProviderEvent.EVENT_TYPE_UNCERTAIN;
diff --git a/core/tests/coretests/src/android/service/timezone/TimeZoneProviderStatusTest.java b/core/tests/coretests/src/android/service/timezone/TimeZoneProviderStatusTest.java
index b7a595c8c7486..03e378fa9d33d 100644
--- a/core/tests/coretests/src/android/service/timezone/TimeZoneProviderStatusTest.java
+++ b/core/tests/coretests/src/android/service/timezone/TimeZoneProviderStatusTest.java
@@ -16,7 +16,7 @@
 
 package android.service.timezone;
 
-import static android.app.timezonedetector.ParcelableTestSupport.assertRoundTripParcelable;
+import static android.app.time.ParcelableTestSupport.assertRoundTripParcelable;
 import static android.service.timezone.TimeZoneProviderStatus.DEPENDENCY_STATUS_BLOCKED_BY_ENVIRONMENT;
 import static android.service.timezone.TimeZoneProviderStatus.DEPENDENCY_STATUS_BLOCKED_BY_SETTINGS;
 import static android.service.timezone.TimeZoneProviderStatus.DEPENDENCY_STATUS_OK;
diff --git a/services/core/java/com/android/server/timedetector/EnvironmentImpl.java b/services/core/java/com/android/server/timedetector/EnvironmentImpl.java
index 8d106f7d7fa41..5801920864b48 100644
--- a/services/core/java/com/android/server/timedetector/EnvironmentImpl.java
+++ b/services/core/java/com/android/server/timedetector/EnvironmentImpl.java
@@ -128,4 +128,5 @@ final class EnvironmentImpl implements TimeDetectorStrategyImpl.Environment {
     @Override
     public void dumpDebugLog(@NonNull PrintWriter printWriter) {
         SystemClockTime.dump(printWriter);
-    }}
+    }
+}