Sleep Calculator

Alarm times for every bedtime

Pick the time you're going to bed.

8:00 PM8:30 PM9:00 PM9:30 PM10:00 PM10:30 PM11:00 PM11:30 PM12:00 AM12:30 AM1:00 AM1:30 AM2:00 AM2:30 AM3:00 AM
Bed atWake for 4.5 hWake for 6 hWake for 7.5 hWake for 9 h
8:00 PM12:45 AM2:15 AM3:45 AM5:15 AM
8:30 PM1:15 AM2:45 AM4:15 AM5:45 AM
9:00 PM1:45 AM3:15 AM4:45 AM6:15 AM
9:30 PM2:15 AM3:45 AM5:15 AM6:45 AM
10:00 PM2:45 AM4:15 AM5:45 AM7:15 AM
10:30 PM3:15 AM4:45 AM6:15 AM7:45 AM
11:00 PM3:45 AM5:15 AM6:45 AM8:15 AM
11:30 PM4:15 AM5:45 AM7:15 AM8:45 AM
12:00 AM4:45 AM6:15 AM7:45 AM9:15 AM
12:30 AM5:15 AM6:45 AM8:15 AM9:45 AM
1:00 AM5:45 AM7:15 AM8:45 AM10:15 AM
1:30 AM6:15 AM7:45 AM9:15 AM10:45 AM
2:00 AM6:45 AM8:15 AM9:45 AM11:15 AM
2:30 AM7:15 AM8:45 AM10:15 AM11:45 AM
3:00 AM7:45 AM9:15 AM10:45 AM12:15 PM

Times include 15 minutes to fall asleep. Need a different time? Use the wake-up time calculator.