Set Alarm for 8:00 PM
The form is pre-filled for 8:00 PM — hit Set Alarm to start the live countdown. Pick a sound, add a label, and the alarm will ring at 8:00 PM local time.
No alarm set
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Set an alarm to start
Alarm
How long until 8:00 PM?
8:00 PM is 20:00 in 24-hour time — the evening. Once set, the alarm display counts down to the next 8:00 PM in your local time zone, rolling over to tomorrow if it has already passed today.
Going to sleep at 8:00 PM?
If 8:00 PM is when you plan to go to bed, these wake-up times fall at the end of a ~90-minute sleep cycle, allowing about 15 minutes to fall asleep:
12:45 AM 3 cycles · 4 h 30 min of sleep 2:15 AM 4 cycles · 6 h of sleep 3:45 AM 5 cycles · 7 h 30 min of sleep 5:15 AM 6 cycles · 9 h of sleep
For a short daytime rest, a 20-minute power nap avoids deep sleep entirely — try the timer instead.
Nearby alarm times
Tips for using a 8:00 PM alarm
- Keep this browser tab open. The alarm runs entirely in your browser and pauses when the tab is closed.
- Click Test once to unlock audio playback in your browser before the alarm fires.
- Use the snooze button to delay the alarm by five minutes if you need a little more time.
- The alarm time is stored in your browser's local storage so it survives a page reload.
Looking for a different time? Set a custom alarm with any minute value.