Set the alarm clock for 8:24 pm

 

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::
 
 

8:24 pm across the country

London8:24 pm
Birmingham8:24 pm
Manchester8:24 pm
Glasgow8:24 pm
Belfast8:24 pm

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

How to use the online alarm clock

While you wait for the agreed moment to unlock the choir rehearsal hall, an alarm for 8:24 pm lets you watch the evening without repeatedly checking the clock. It is early enough to open up, switch on the lights and have the room ready before 9:00 pm, while avoiding a long spell standing by an empty entrance.

For a rehearsal opening, the useful check happens before anyone is relying on the signal. After setting 8:24 pm, a brief test alarm can confirm that the chosen sound is audible at the volume you expect, including from a coat pocket or bag. The browser also needs to remain active: if its page is closed or the phone or laptop falls asleep, the alarm will not sound and the choir could be left waiting outside the hall.

Once the choir is inside, the rest of the evening can easily run later than planned, so the sleep left afterwards is worth accounting for now. A sensible finishing time written beside the rehearsal notes gives the session a clear boundary, with extra minutes allowed for locking music away, checking the kitchen and securing the hall. That keeps an 8:24 pm opening from quietly turning into a much later journey home.

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 8:24 pm?

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.