Set Alarm for 1 am
An alarm pre-set for 1 am. It will ring .
Keep this tab open for the alarm to ring — browsers can't fire sound while a tab is fully closed.
About a 1 am alarm
A 1 am alarm is used by night-shift workers, people waking for overnight feeds or medication, and fans following live events from the US, where it is evening on the east coast. It is also the hour that repeats when the clocks go back in October. Because it falls exactly on the hour, this alarm lines up with the pips on BBC radio and with most train and bus departures, which makes it the easiest time to remember and to coordinate with other people. It is also the time most calendar reminders default to, so it rarely clashes with a meeting that starts on the half hour.
In London the sun is already up at 1 am in none. It is still dark, or already dark, at that time in every month.
When to go to bed for a 1 am alarm
Sleep runs in roughly 90-minute cycles, and waking at the end of one tends to feel easier. These bedtimes include about 15 minutes to fall asleep.
- Bed at 15:45 for 6 cycles (9 hours of sleep)
- Bed at 17:15 for 5 cycles (7.5 hours of sleep)
- Bed at 18:45 for 4 cycles (6 hours of sleep)
Frequently asked questions
What time should I go to bed to wake at 1 am?
Allowing about 15 minutes to fall asleep, bedtimes of 15:45 (9 hours), 17:15 (7.5 hours) or 18:45 (6 hours) line up with 90-minute sleep cycles.
Will the alarm ring if I close the tab?
No. Keep this tab open, in the background is fine, and turn the volume up. The alarm uses your device's own clock.