Set the alarm clock for 5:29 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 5:27 am Alarm clock for 5:28 am Alarm clock for 5:30 am Alarm clock for 5:31 am

Going to bed for a 5:29 am alarm

Asleep by 8:14 pm — 6 full sleep cycles, about 9 hours
Asleep by 9:44 pm — 5 full sleep cycles, about 7 hours
Asleep by 11:14 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.

5:29 am across the country

London	5:29 am
Birmingham	5:29 am
Manchester	5:29 am
Glasgow	5:29 am
Belfast	5:29 am

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

How to use the online alarm clock

Preparing for the first sheep round on a Welsh farm means setting the 5:29 am alarm before boots, waterproofs and gate keys are needed. It gives you a clear starting point while the yard is still quiet, with 31 minutes available before 6:00 am for checking a torch, filling a flask and seeing which fields need attention first.

A farmyard can already be loud when the alarm sounds, so set the volume while standing near the kettle, radio or any machinery likely to be running. Test the signal at that same noise level and keep the phone close enough to hear without burying it beneath clothing. Because this browser alarm only runs while its page remains open and the phone stays awake, it cannot prompt the sheep round if either is shut down beforehand; use a separate alarm as backup when missing the start would disrupt the morning.

Before heading across the fields at 5:29 am, account for the sharp change between a warm farmhouse and the cooler air outside. Air conditioning left on overnight can make the indoor temperature misleading, while an unexpectedly warm early morning may call for lighter layers. Place an extra layer by the door so it can be added or left behind after a quick check outside.

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 5:29 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.