Set an alarm for 23:20

⏰ The alarm will ring at 11:20 PM — in 21 h 18 min
Alarm at 11:20 PM
⏰ 11:20 PM
21Hours
:
18Minutes
:
13Seconds
Saturday, October 24, 2026

Set an alarm for another time

Best bedtimes to wake up at 11:20 PM

Go to bed atSleep cyclesSleep
2:05 PM69 h
3:35 PM57 h 30 min
5:05 PM46 h
6:35 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 11:20 PM alarm

Snooze length1st2nd3rd
5 minutes11:25 PM11:30 PM11:35 PM
9 minutes11:29 PM11:38 PM11:47 PM
10 minutes11:30 PM11:40 PM11:50 PM

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

About 11:20 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 11:20 PM

12-hour clock11:20 PM
24-hour clock23:20
Military time2320
In wordsTwenty minutes past eleven
Part of the dayNight

Questions about a 23:20 alarm

How do I set an alarm for 23:20?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 11:20 PM, which is 21 hours, 18 minutes from now.

What time should I go to bed to wake up at 11:20 PM?

For five full sleep cycles, go to bed around 3:35 PM; for six cycles, around 2:05 PM.