Set the alarm clock for 4:03 pm

 

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

The alarm goes off in: ::
 
 

4:03 pm across the country

London4:03 pm
Birmingham4:03 pm
Manchester4:03 pm
Glasgow4:03 pm
Belfast4:03 pm

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

How to use the online alarm clock

Waking at 4:03 pm gives you a clear prompt to get up and prepare for the mining town brass band rehearsal. Settle on what you need to take, get dressed and leave enough room for the journey rather than drifting back to sleep. With 57 minutes until 5:00 pm, the remaining afternoon can cover a calm start before rehearsal.

Your rehearsal may already involve plenty of background sound, so choose an alarm volume that will remain noticeable if music, traffic or household noise starts around you. A short test now can confirm that the signal is distinct without making it unnecessarily harsh. Do not make this browser alarm the sole safeguard for the rehearsal: if it is no longer running when the phone or computer sleeps, no signal will sound.

Getting ready for a brass band session after an afternoon nap can feel less straightforward when the room is warm. At 4:03 pm, keep the air conditioning at a comfortable setting while you dress and gather your instrument or music, then allow a moment to adjust before stepping into the heat outside. Keeping a glass of water nearby also avoids searching for one just as it is time to leave.

Common questions

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.

What happens if my laptop goes to sleep before 4:03 pm?

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.