Set an alarm for 20:38
⏰ The alarm will ring at 8:38 PM — in 18 h 39 min
Set an alarm for another time
Best bedtimes to wake up at 8:38 PM
| Go to bed at | Sleep cycles | Sleep |
|---|---|---|
| 11:23 AM | 6 | 9 h |
| 12:53 PM | 5 | 7 h 30 min |
| 2:23 PM | 4 | 6 h |
| 3:53 PM | 3 | 4 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 8:38 PM alarm
| Snooze length | 1st | 2nd | 3rd |
|---|---|---|---|
| 5 minutes | 8:43 PM | 8:48 PM | 8:53 PM |
| 9 minutes | 8:47 PM | 8:56 PM | 9:05 PM |
| 10 minutes | 8:48 PM | 8:58 PM | 9:08 PM |
Nine minutes is the traditional snooze length on many alarm clocks.
About 8:38 PM
The 8 PM hour begins prime time on U.S. television (8–11 PM Eastern), when the most people watch TV.
Press “Start Alarm” and keep this tab open; press “Test Alarm” first to check the volume.
About 8:38 PM
| 12-hour clock | 8:38 PM |
|---|---|
| 24-hour clock | 20:38 |
| Military time | 2038 |
| In words | Twenty-two minutes to nine |
| Part of the day | Evening |
Questions about a 20:38 alarm
How do I set an alarm for 20:38?
Open this page, press “Start Alarm” and leave the tab open. The alarm rings at 8:38 PM, which is 18 hours, 39 minutes from now.
What time should I go to bed to wake up at 8:38 PM?
For five full sleep cycles, go to bed around 12:53 PM; for six cycles, around 11:23 AM.