Set the alarm clock for 5:08 am

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

The alarm goes off in: ::

You can also try the other alarm clocks

Alarm clock for 5:06 am Alarm clock for 5:07 am Alarm clock for 5:09 am Alarm clock for 5:10 am

Going to bed for a 5:08 am alarm

Asleep by 7:53 pm — 6 full sleep cycles, about 9 hours
Asleep by 9:23 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:53 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.

5:08 am across the country

London	5:08 am
Birmingham	5:08 am
Manchester	5:08 am
Glasgow	5:08 am
Belfast	5:08 am

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

How to use the online alarm clock

You’re checking the Met Office ice warning at 5:08 am, well before you need to leave, so there is time to adjust the morning rather than react at the door. Set the alarm for the point when you want to look again or start getting ready; 6:00 am is a useful reference if conditions or the forecast may change.

Because this alert is meant as an advance check, test its sound now while a missed signal is still harmless. Choose 5:08 am, confirm the alarm is armed, keep the volume clearly audible, and wait for a brief trial before relying on it later. This browser alarm only remains available while the current session stays active, so the Met Office warning could go unchecked if you step away; use a separate alarm whenever you cannot leave it running.

Before setting off, allow more road time than your usual journey if the warning applies to your route. At this early hour, check the latest warning again shortly before departure and note which route gives you more margin. A quiet road can make the trip seem simple at first, so keep enough time available for a slower section without making the rest of the morning rushed.

Common questions

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.

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.