Set an alarm for 10:40

⏰ The alarm will ring at 10:40 AM — in 9 h 27 min
Alarm at 10:40 AM
⏰ 10:40 AM
9Hours
:
27Minutes
:
1Seconds
Saturday, October 24, 2026

Set an alarm for another time

Best bedtimes to wake up at 10:40 AM

Go to bed atSleep cyclesSleep
1:25 AM69 h
2:55 AM57 h 30 min
4:25 AM46 h
5:55 AM34 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 10:40 AM alarm

Snooze length1st2nd3rd
5 minutes10:45 AM10:50 AM10:55 AM
9 minutes10:49 AM10:58 AM11:07 AM
10 minutes10:50 AM11:00 AM11:10 AM

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

About 10:40 AM

The 10 AM hour is mid-morning: the working day is well under way and many people take a short break or a second coffee.

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

About 10:40 AM

12-hour clock10:40 AM
24-hour clock10:40
Military time1040
In wordsTwenty minutes to eleven
Part of the dayMorning

Questions about a 10:40 alarm

How do I set an alarm for 10:40?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 10:40 AM, which is 9 hours, 27 minutes from now.

What time should I go to bed to wake up at 10:40 AM?

For five full sleep cycles, go to bed around 2:55 AM; for six cycles, around 1:25 AM.