Set the alarm clock for 8:29 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 8:27 am Alarm clock for 8:28 am Alarm clock for 8:30 am Alarm clock for 8:31 am

Going to bed for a 8:29 am alarm

Asleep by 11:14 pm — 6 full sleep cycles, about 9 hours
Asleep by 12:44 am — 5 full sleep cycles, about 7 hours
Asleep by 2:14 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.

8:29 am across the country

London	8:29 am
Birmingham	8:29 am
Manchester	8:29 am
Glasgow	8:29 am
Belfast	8:29 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 hand over the school-bus preparation to someone else at 8:29 am, set the alarm to mark the exact moment they need to take charge. There are 31 minutes before 9:00 am, enough time for them to check the child has their uniform, bag, lunch and travel pass without turning the changeover into a rushed explanation.

Because the alarm may look ready while the phone is muted, check the sound setting before leaving the school-bus routine in another person’s hands. Choose a tone, raise the volume and use the preview if one is available. This browser alarm cannot protect the school-bus handover after the page is closed or the phone falls asleep, so keep the page open and the phone awake until it rings. A separate phone alarm is a sensible fallback if you must put it away.

With other people still moving through the house early in the morning, place the phone where the person taking over can hear it without waking everyone nearby. A moderate tone on a hard kitchen surface usually carries farther than a loud one buried under bedding or clothes. Tell the household what the 8:29 am signal means, so nobody silences it while the child is getting ready for the bus.

Common questions

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 8:29 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.

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.