Set the alarm clock for 8:57 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 8:55 am Alarm clock for 8:56 am Alarm clock for 8:58 am Alarm clock for 8:59 am

Going to bed for a 8:57 am alarm

Asleep by 11:42 pm — 6 full sleep cycles, about 9 hours
Asleep by 1:12 am — 5 full sleep cycles, about 7 hours
Asleep by 2:42 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.

8:57 am across the country

London	8:57 am
Birmingham	8:57 am
Manchester	8:57 am
Glasgow	8:57 am
Belfast	8:57 am

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

How to use the online alarm clock

You are getting ready to open the allotment gate before the beds need attention, so setting an alarm for 8:57 am keeps that small job from slipping past. With 9:00 am close behind, there is just enough time to collect the key, pull on suitable shoes and head outside without rushing.

Because the gate matters later, check the alarm sound now rather than discovering a problem when you need the reminder. Set a brief test, make sure the volume is clearly audible from where you will be, then return the alarm to 8:57 am. Do not rely on it after leaving this page or letting the phone sleep: the gate reminder may never sound.

As you make for the allotment, listen for how the surroundings have changed by this point in the morning. Commuter traffic, nearby building work or a running lawn mower can mask a quiet signal around 8:57 am, even if the same volume seemed obvious earlier. Keeping the phone nearby and choosing a distinct tone makes the reminder easier to notice against that rising background noise.

Common questions

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 8:57 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.