diff --git a/src/com/android/settings/display/darkmode/TimeFormatter.java b/src/com/android/settings/display/darkmode/TimeFormatter.java
index 1032fe1be01..32ff026b7e3 100644
--- a/src/com/android/settings/display/darkmode/TimeFormatter.java
+++ b/src/com/android/settings/display/darkmode/TimeFormatter.java
@@ -18,26 +18,29 @@ package com.android.settings.display.darkmode;
 import android.content.Context;
 
 import java.time.LocalTime;
-import java.time.format.DateTimeFormatter;
-import java.util.Locale;
+import java.util.Calendar;
+import java.util.TimeZone;
 
 /**
  * Formats LocalTime to the locale time string format
 */
 public class TimeFormatter {
     private final Context mContext;
-    private final DateTimeFormatter mFormatter;
+    private final java.text.DateFormat mFormatter;
     public TimeFormatter(Context context) {
         mContext = context;
-        Locale locale = mContext.getResources().getConfiguration().locale;
-        if (locale == null) {
-            locale = Locale.getDefault();
-        }
-        mFormatter = DateTimeFormatter.ofPattern("hh:mm a", locale);
+        mFormatter = android.text.format.DateFormat.getTimeFormat(context);
+        mFormatter.setTimeZone(TimeZone.getTimeZone("UTC"));
     }
 
     public String of(LocalTime time) {
-        return mFormatter.format(time);
+        final Calendar c = Calendar.getInstance();
+        c.setTimeZone(mFormatter.getTimeZone());
+        c.set(Calendar.HOUR_OF_DAY, time.getHour());
+        c.set(Calendar.MINUTE, time.getMinute());
+        c.set(Calendar.SECOND, 0);
+        c.set(Calendar.MILLISECOND, 0);
+        return mFormatter.format(c.getTime());
     }
 
     public boolean is24HourFormat() {