Set an alarm for 23:29

⏰ The alarm will ring at 11:29 PM — in 21 h 28 min
Alarm at 11:29 PM
⏰ 11:29 PM
21Hours
:
28Minutes
:
13Seconds
Saturday, October 24, 2026

Set an alarm for another time

Best bedtimes to wake up at 11:29 PM

Go to bed atSleep cyclesSleep
2:14 PM69 h
3:44 PM57 h 30 min
5:14 PM46 h
6:44 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 11:29 PM alarm

Snooze length1st2nd3rd
5 minutes11:34 PM11:39 PM11:44 PM
9 minutes11:38 PM11:47 PM11:56 PM
10 minutes11:39 PM11:49 PM11:59 PM

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

About 11:29 PM

11 PM is the last hour of the calendar day; anything due 'by end of day' must be done before midnight.

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

About 11:29 PM

12-hour clock11:29 PM
24-hour clock23:29
Military time2329
In wordsTwenty-nine minutes past eleven
Part of the dayNight

Questions about a 23:29 alarm

How do I set an alarm for 23:29?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 11:29 PM, which is 21 hours, 28 minutes from now.

What time should I go to bed to wake up at 11:29 PM?

For five full sleep cycles, go to bed around 3:44 PM; for six cycles, around 2:14 PM.