Set the alarm clock for 5:31 am

 

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::
 
 

Going to bed for a 5:31 am alarm

  • Asleep by 8:16 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 9:46 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 11:16 pm — 4 full sleep cycles, about 6 hours

A sleep cycle runs about 90 minutes, and most people take around 15 minutes to drop off. Waking at the end of a cycle feels easier than waking in the middle of one.

5:31 am across the country

London5:31 am
Birmingham5:31 am
Manchester5:31 am
Glasgow5:31 am
Belfast5:31 am

Times are worked out live in your browser, so daylight saving is already accounted for.

How to use the online alarm clock

Waking at 5:31 am gives you a quiet moment to get out of bed before baking the scones for the village tearoom opening. There is time to wash, dress and gather the ingredients without treating the morning as a race. By 6:00 am, the oven can be warming and the first batch taking shape.

A gentle tone suits a peaceful house when rising promptly is usually easy, while a more insistent sound makes sense if early starts often slip past unnoticed. The chosen alarm should be audible from where the phone will sit, but not so harsh that it wakes everyone nearby. The scones could be late if this browser alarm is left behind by closing the page or allowing the phone to sleep, so a separate alarm is sensible when the opening depends on the wake-up.

Once the early baking is mapped out, a small buffer before the next job that day keeps the tearoom preparations from overrunning. Setting aside ten minutes after the final tray for cooling racks, washing up and changing floury clothes leaves a clearer boundary between baking and whatever follows. At this hour, that spare time is more useful than filling every minute before opening.

Common questions

Do I need an account or an app?

Neither. Choose a time and a sound, press Start, and it runs in this browser tab. Nothing is downloaded, nothing is registered, and closing the page leaves nothing behind on the device.

Can I change the sound?

Yes, there is a short list of tones to pick from before you press Start. Softer sounds are easy to sleep through, so a firmer bell tends to be the safer choice for anything early in the morning.

Will it still be right when the clocks change?

Yes. It reads your device's local clock, so the move between GMT and BST at the end of March and October is picked up automatically, as long as the computer's date, time and time zone are set correctly.

Can I use this on a phone?

It works in a mobile browser, but phones lock the screen and suspend background tabs far more readily than a laptop does, which can stop the alarm sounding. For anything important, a desktop or a plugged-in laptop is the steadier option.