Set the alarm clock for 7:33 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 7:31 am Alarm clock for 7:32 am Alarm clock for 7:34 am Alarm clock for 7:35 am

Going to bed for a 7:33 am alarm

Asleep by 10:18 pm — 6 full sleep cycles, about 9 hours
Asleep by 11:48 pm — 5 full sleep cycles, about 7 hours
Asleep by 1:18 am — 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.

7:33 am across the country

London	7:33 am
Birmingham	7:33 am
Manchester	7:33 am
Glasgow	7:33 am
Belfast	7:33 am

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

How to use the online alarm clock

Hand the strawberry picking over at 7:33 am so the next person can carry on without losing the cool, quiet part of the morning. This alarm marks the change clearly and leaves 27 minutes before 8:00 am, enough time for the new picker to fill another punnet or finish a row before the farm stall opens.

Because the handover depends on a sound at one precise moment, the alarm page needs to remain active while the time approaches. If the browser or this page is closed, the alarm cannot sound, and the strawberry picking may not change hands as planned. Keep the computer or phone awake, leave the page open, and check that its volume can be heard from the place where the swap will happen. A separate phone alarm is a sensible backup if nobody will stay near the screen.

Returning from the field at 7:33 am can disturb anyone still asleep in the house, especially when boots, buckets and keys are left by the door. Put the clothes and containers needed for the changeover near the entrance beforehand, keep the alarm volume only as high as necessary, and use vibration as an extra cue. The outgoing picker can then leave quietly while the replacement gets outside with little fuss.

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.