Lets say i set up two alarms
09:00:00 (alarm1)
09:10:00 (alarm2)
and every alarm can snooze for 10 minutes.
Then alarm1 sounds and i snooze it at 09:00:10 so it must ring again at 09:10:10 BUT at time 09:10:00 already the alarm2 is ringing an i snooze it at 09:10:11.
what will happen to the alarm1? when will the first alarm be replayed?
To me the following happened. When it was time for the alarm2 to be activated, the alarm1 actually activated. 1st experiment: I postponed alarm1 and the alarm2 deactivated. 2nd experiment: I turned the alarm1 off and the alarm2 was activate, but it was scheduled to ring in past time.
来源：https://stackoverflow.com/questions/53869043/multiple-cell-phone-alarms-which-one-covers-the-other-which-alarm-is-preceded