Set the alarm clock for 3:14 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 3:12 am Alarm clock for 3:13 am Alarm clock for 3:15 am Alarm clock for 3:16 am

Going to bed for a 3:14 am alarm

Asleep by 5:59 pm — 6 full sleep cycles, about 9 hours
Asleep by 7:29 pm — 5 full sleep cycles, about 7 hours
Asleep by 8:59 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.

3:14 am across the country

London	3:14 am
Birmingham	3:14 am
Manchester	3:14 am
Glasgow	3:14 am
Belfast	3:14 am

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

How to use the online alarm clock

As you finish the handover and leave, a 3:14 am alarm can mark the moment the relief crew is due to go onto the railway tracks. It gives the departing shift a clear final cue without turning the whole handover into clock-watching. With 4:00 am still ahead, there is also time to report anything unfinished before heading away from the worksite.

The alert can easily be routed to headphones that were connected earlier, even when their owner has forgotten about them. Check the audio output before relying on the alarm, then use a volume that will be noticeable without disturbing everyone nearby. A browser alarm cannot sound after the browser has stopped running or the computer has fallen asleep, so the relief crew could miss its prompt unless the page remains active on an awake machine.

Leaving railway work at this point in the night can blur the gap between finishing one responsibility and beginning the next part of the same day. Before departing, note when that next commitment starts and preserve a realistic buffer for travel, changing clothes and any essential handover message. The 46 minutes before 4:00 am may look spare, but treating them as allocated time helps prevent the next appointment from becoming rushed.

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.