Set the alarm clock for 8:37 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 8:37 am alarm

  • Asleep by 11:22 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 12:52 am — 5 full sleep cycles, about 7 hours
  • Asleep by 2:22 am — 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.

8:37 am across the country

London8:37 am
Birmingham8:37 am
Manchester8:37 am
Glasgow8:37 am
Belfast8:37 am

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

How to use the online alarm clock

Finish checking the Met Office ice warning when the alarm sounds at 8:37 am, then put the phone away and head out. That gives the alert a clear purpose: it marks the moment when checking ends and leaving begins, rather than becoming another notification to dismiss. There are 23 minutes before 9:00 am, enough time for a measured start if the warning changes your route.

Because the Met Office check is your final task before departure, leave this alarm page in the foreground while you finish it. A background browser tab may be slowed or suspended, particularly when the phone is conserving power. The ice warning check could therefore be missed if the browser can no longer run the alarm after the page is closed or the phone goes to sleep. Keep the screen active until 8:37 am, and use a built-in phone alarm as backup when timing affects the journey.

Before stepping outside on an early British morning, a small drink of water or a usual cup of tea can fit comfortably around the final forecast check. Save a cooked breakfast or anything awkward to carry until the journey plan is settled, especially if ice means leaving by a different route. Having a simple snack ready also avoids turning the 8:37 am alarm into the start of another lengthy kitchen task.

Common questions

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.

Does the alarm still work if I close the tab?

No. Everything runs inside this page, so closing the tab — or quitting the browser altogether — ends the countdown there and then. Leaving it open in the background is all it asks, and switching to another tab makes no difference.

What happens if my laptop goes to sleep before 8:37 am?

The tab sleeps along with it and the alarm will not sound on time, if at all. If you are relying on it, change the power settings so the machine stays awake, or keep a phone alarm running as well.

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.