Set an alarm for 1:31

⏰ The alarm will ring at 1:31 AM — in 23 h 29 min
Alarm at 1:31 AM
⏰ 1:31 AM
23Hours
:
29Minutes
:
56Seconds
Saturday, October 24, 2026

Set an alarm for another time

Best bedtimes to wake up at 1:31 AM

Go to bed atSleep cyclesSleep
4:16 PM69 h
5:46 PM57 h 30 min
7:16 PM46 h
8:46 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 1:31 AM alarm

Snooze length1st2nd3rd
5 minutes1:36 AM1:41 AM1:46 AM
9 minutes1:40 AM1:49 AM1:58 AM
10 minutes1:41 AM1:51 AM2:01 AM

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

About 1:31 AM

The 1 AM hour is deep in the night. Night-shift workers, bakers and flight crews are among the few people routinely awake.

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

About 1:31 AM

12-hour clock1:31 AM
24-hour clock01:31
Military time0131
In wordsTwenty-nine minutes to two
Part of the dayNight

Questions about a 1:31 alarm

How do I set an alarm for 1:31?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 1:31 AM, which is 23 hours, 29 minutes from now.

What time should I go to bed to wake up at 1:31 AM?

For five full sleep cycles, go to bed around 5:46 PM; for six cycles, around 4:16 PM.