Set the alarm clock for 5:41 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 5:39 am Alarm clock for 5:40 am Alarm clock for 5:42 am Alarm clock for 5:43 am

Going to bed for a 5:41 am alarm

Asleep by 8:26 pm — 6 full sleep cycles, about 9 hours
Asleep by 9:56 pm — 5 full sleep cycles, about 7 hours
Asleep by 11:26 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.

5:41 am across the country

London	5:41 am
Birmingham	5:41 am
Manchester	5:41 am
Glasgow	5:41 am
Belfast	5:41 am

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

How to use the online alarm clock

Before handing the sheep round to the next person, set the alarm for 5:41 am so the changeover happens at the agreed moment. That leaves the incoming worker time to collect a torch, check the gate notes and be ready well before 6:00 am, while the person finishing can explain anything unusual in the flock rather than rushing away.

Out among sheep, an alarm that sounded clear indoors can disappear beneath wind, a quad bike or noise from the sheds. Choose a volume that can be heard from a coat pocket and test it where the handover will actually happen. The sheep round cannot rely on this browser alarm once its page is dismissed or the phone is allowed to sleep, so keep it active until the signal has sounded and use a separate alarm if missing the changeover would leave nobody ready.

During a 5:41 am start on a Welsh farm, the dim light can make a bright screen feel harsh when checking who is taking over. Lower the display brightness before stepping outside, use a warmer screen setting if the phone provides one, and keep the handover notes brief enough to read without staring at the display. A torch aimed towards the ground can help with gates and footing without adding glare around the screen.

Common questions

What happens if my laptop goes to sleep before 5:41 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.

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.