Set an alarm for 3:00 AM

⏰ The alarm will ring at 3:00 AM — in 8 h 15 min
Alarm at 3:00 AM
⏰ 3:00 AM
8Hours
:
15Minutes
:
2Seconds
Friday, September 25, 2026

Set an alarm for another time

Best bedtimes to wake up at 3:00 AM

Go to bed atSleep cyclesSleep
5:45 PM69 h
7:15 PM57 h 30 min
8:45 PM46 h
10:15 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 3:00 AM alarm

Snooze length1st2nd3rd
5 minutes3:05 AM3:10 AM3:15 AM
9 minutes3:09 AM3:18 AM3:27 AM
10 minutes3:10 AM3:20 AM3:30 AM

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

About 3:00 AM

The 3 AM hour is the quietest part of the night for traffic and phone networks, which is why maintenance windows are often scheduled now.

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

About 3:00 AM

12-hour clock3:00 AM
24-hour clock03:00
Military time0300
In wordsThree o'clock
Part of the dayNight

Questions about a 3:00 AM alarm

How do I set an alarm for 3:00 AM?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 3:00 AM, which is 8 hours, 15 minutes from now.

What time should I go to bed to wake up at 3:00 AM?

For five full sleep cycles, go to bed around 7:15 PM; for six cycles, around 5:45 PM.