Set the alarm clock for 4:04 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 4:02 am Alarm clock for 4:03 am Alarm clock for 4:05 am Alarm clock for 4:06 am

Going to bed for a 4:04 am alarm

Asleep by 6:49 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:19 pm — 5 full sleep cycles, about 7 hours
Asleep by 9:49 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.

4:04 am across the country

London	4:04 am
Birmingham	4:04 am
Manchester	4:04 am
Glasgow	4:04 am
Belfast	4:04 am

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

How to use the online alarm clock

While preparing in advance for the tearoom’s morning bake, setting an alarm for 4:04 am gives you a precise cue to move from planning to action. You can have the ingredients weighed, trays ready and recipe open before the alarm sounds. That leaves enough working time to get the first batch under way before 5:00 am.

A flour-dusted kitchen can make a quiet alert easy to miss, so check the selected sound and volume when you set the alarm. Silent mode may suppress the signal even though the timer appears to be running; a brief sound check beforehand avoids that uncertainty. If the browser page is closed or the device goes to sleep, no alarm will sound, and the tearoom’s morning rolls may miss their baking schedule.

A pre-dawn bake can leave some sleep available later, but only if the stopping point is planned as carefully as the start. If the recipe includes a safe resting or cooling stage after 4:04 am, set a separate alarm for its end before lying down again. Do not leave anything baking unattended; wait until the oven is off and the trays are safely placed before returning to bed.

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.