Set the alarm clock for 11:37 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 11:35 am Alarm clock for 11:36 am Alarm clock for 11:38 am Alarm clock for 11:39 am

Going to bed for a 11:37 am alarm

Asleep by 2:22 am — 6 full sleep cycles, about 9 hours
Asleep by 3:52 am — 5 full sleep cycles, about 7 hours
Asleep by 5:22 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.

11:37 am across the country

London	11:37 am
Birmingham	11:37 am
Manchester	11:37 am
Glasgow	11:37 am
Belfast	11:37 am

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

Online alarm clock for 11:37 am

You have only just woken up, and the first job is making sure you get to your tour inside the Houses of Parliament. Set the alarm for 11:37 am before you start getting ready, so you have a clear point at which to leave or check your route. With 12:00 pm approaching, there is still time to gather your ticket and photo ID without drifting into the rest of the morning.

Your Parliament tour alarm depends on this browser remaining active until it rings. If the screen locks and the device goes to sleep first, or you close the page, the alert may never interrupt your preparations. Keep the device awake, leave this page open, and turn the sound up to a level you will hear from another room. A separate phone alarm is a sensible backup when the admission time cannot be missed.

Getting ready late in the morning can make a full meal feel rushed, so choose something quick and familiar if you have not eaten. Water and a light snack can fit beside checking your documents; save anything messy or time-consuming until after the visit. Before leaving for Westminster, use the 11:37 am alert as the moment to put drinks away, take your essentials and head out without carrying an open cup.

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 11:37 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.