Alarm Manager doesn't fire notifications when I set date

Question

I'm trying to set notifications at specific date and time.

Notifications are working only when I set to calendar values for hour and minute, but not date. here is example from my code

    Calendar cal1 = Calendar.getInstance();

    cal1.set(Calendar.YEAR, 2019);
    cal1.set(Calendar.MONTH, 10);
    cal1.set(Calendar.DAY_OF_MONTH, 24);

    cal1.set(Calendar.HOUR_OF_DAY, 10);
    cal1.set(Calendar.MINUTE, 30);
    cal1.set(Calendar.SECOND, 0);
    long time = cal1.getTimeInMillis();

    AlarmManager alarmManager =(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);

    Intent notificationIntent = new Intent(context, AlarmReceiver.class);
    notificationIntent.putExtra(AddReminder.REMINDER_ID, Integer.toString(ID));
    PendingIntent broadcast = PendingIntent.getBroadcast(context, 100, notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT);


    alarmManager.setExact(AlarmManager.RTC_WAKEUP, time, broadcast);

What am I doing wrong?

Answer 1

Java calender month starts from 0, so if you want October to be the month, it will be 9 not 10

cal1.set(Calendar.MONTH, 9);