Set an alarm for 0:15

⏰ The alarm will ring at 12:15 AM — in 22 h 14 min
Alarm at 12:15 AM
⏰ 12:15 AM
22Hours
:
14Minutes
:
24Seconds
Saturday, October 24, 2026

Set an alarm for another time

Best bedtimes to wake up at 12:15 AM

Go to bed atSleep cyclesSleep
3:00 PM69 h
4:30 PM57 h 30 min
6:00 PM46 h
7:30 PM34 h 30 min

Assumes about 15 minutes to fall asleep and sleep cycles of roughly 90 minutes. Cycle length varies from person to person, so treat these as estimates.

Snooze times after a 12:15 AM alarm

Snooze length1st2nd3rd
5 minutes12:20 AM12:25 AM12:30 AM
9 minutes12:24 AM12:33 AM12:42 AM
10 minutes12:25 AM12:35 AM12:45 AM

Nine minutes is the traditional snooze length on many alarm clocks.

About 12:15 AM

Midnight starts a new calendar day. Date-based deadlines, daily counters and many scheduled computer jobs reset during this hour, and most people are asleep.

Press “Start Alarm” and keep this tab open; press “Test Alarm” first to check the volume.

About 12:15 AM

12-hour clock12:15 AM
24-hour clock00:15
Military time0015
In wordsQuarter past midnight
Part of the dayNight

Questions about a 0:15 alarm

How do I set an alarm for 0:15?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 12:15 AM, which is 22 hours, 14 minutes from now.

What time should I go to bed to wake up at 12:15 AM?

For five full sleep cycles, go to bed around 4:30 PM; for six cycles, around 3:00 PM.