Set the alarm clock for 12:55 am

 

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

The alarm goes off in: ::
 
 

12:55 am across the country

London12:55 am
Birmingham12:55 am
Manchester12:55 am
Glasgow12:55 am
Belfast12:55 am

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

How to use the online alarm clock

While weighing flour and setting out trays for the tearoom’s morning buns, you may need a firm cue to break away from the preparation. An alarm for 12:55 am marks the moment to start baking, leaving the first batch under way before 1:00 am rather than letting another kitchen task absorb your attention.

Because the baking begins in the middle of an overnight job, the alarm needs a computer or phone that remains awake until it sounds. If the browser page is closed or the machine falls asleep, no alert can play, and the buns may go into the oven late. Keeping this page visible and mains power connected reduces that risk; the displayed time also gives you a quick check while your hands are occupied with dough or tins.

Working near midnight can make a bright screen feel harsh against a dim kitchen. A low display brightness and warmer colour setting make the 12:55 am alarm easier to check without flooding the worktop with light. Positioning the screen slightly to one side also keeps it out of your direct line of sight while still leaving the alarm time readable during the final stages of preparation.

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 12:55 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.