For api levels below 19 you should use AlarmManager.setRepeating() and your alarms will trigger exactly at specified time. Thou on api levels 19 and above this will no longer work. There was change in android so that all repeating alarms are inexact. So if you would like to achieve exact repeating alarm you should schedule … Read more
You don’t need to create Timestamps. You can do it with your Calendar. Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.HOUR_OF_DAY, hourOfDay); calendar.set(Calendar.MINUTE, minute); if(calendar.before(Calendar.getInstance())) { calendar.add(Calendar.DATE, 1); } alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingDinnerIntent); I would also mention that as of KitKat, if your targetSdkVersion is 19 or above, the AlarmManager#set() method is not exact. If you want your alarm … Read more