rk\frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java

init(){
filter = new IntentFilter();
        filter.addAction(ACTION_ZED_SYSTEM_TIME);
        context.registerReceiver(mSystemTimeSetReceiver, filter);
}
BroadcastReceiver mSystemTimeSetReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            int [] TimeArray=intent.getIntArrayExtra("SystemTime");
            if(TimeArray.length==6){
            setSysTime(TimeArray[0],TimeArray[1],TimeArray[2],TimeArray[3],TimeArray[4],TimeArray[5]);
            }
        }
    };
public void setSysTime(int year,int month,int day,int hour,int minute,int second){
          Calendar c = Calendar.getInstance();
          c.set(Calendar.YEAR, year);
          c.set(Calendar.MONTH, month-1);
          c.set(Calendar.DAY_OF_MONTH, day);
          c.set(Calendar.HOUR_OF_DAY, hour);
          c.set(Calendar.MINUTE, minute);
          c.set(Calendar.SECOND, second);
          long when = c.getTimeInMillis();
          if(when / 1000 < Integer.MAX_VALUE){
              ((AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when);
                }
        }