Set an alarm for 12:47 AM

⏰ The alarm will ring at 12:47 AM — in 23 h 32 min
Alarm at 12:47 AM
⏰ 12:47 AM
23Hours
:
32Minutes
:
56Seconds
Saturday, October 24, 2026

Set an alarm for another time

Best bedtimes to wake up at 12:47 AM

Go to bed atSleep cyclesSleep
3:32 PM69 h
5:02 PM57 h 30 min
6:32 PM46 h
8:02 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 12:47 AM alarm

Snooze length1st2nd3rd
5 minutes12:52 AM12:57 AM1:02 AM
9 minutes12:56 AM1:05 AM1:14 AM
10 minutes12:57 AM1:07 AM1:17 AM

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

About 12:47 AM

Midnight starts a new calendar day. Date-based deadlines, daily counters and many scheduled computer jobs reset during this hour, and most people are asleep.

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

About 12:47 AM

12-hour clock12:47 AM
24-hour clock00:47
Military time0047
In wordsThirteen minutes to one
Part of the dayNight

Questions about a 12:47 AM alarm

How do I set an alarm for 12:47 AM?

Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 12:47 AM, which is 23 hours, 32 minutes from now.

What time should I go to bed to wake up at 12:47 AM?

For five full sleep cycles, go to bed around 5:02 PM; for six cycles, around 3:32 PM.