/ Set the alarm to start at 8:30 a.m.
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(Calendar.HOUR_OF_DAY, 22);
        calendar.set(Calendar.MINUTE, 27);

// setRepeating() lets you specify a precise custom interval--in this case,
// 20 minutes.
        alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
                1000 * 60 * 1, alarmIntent);
        startActivity(intent);