Set the alarm clock for 11:24 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:24 am alarm

  • Asleep by 2:09 am — 6 full sleep cycles, about 9 hours
  • Asleep by 3:39 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:09 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.

11:24 am across the country

Sydney11:24 am
Brisbane11:24 am
Adelaide10:54 am
Perth9:24 am
Darwin10:54 am

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

How to use the online alarm clock

Setting an alarm for 11:24 am in the middle of the day sounds unnecessary until you've missed a lunch meeting because you were heads-down in something else. This rings through your browser at 11:24 am, loud enough to notice at a desk, without needing your phone within reach.

There's a short list of sounds to choose from before you press Start — pick one that suits how deep a sleeper you are. Once it's set, the page keeps time in the background of your browser, and it'll sound at the moment you selected, provided the tab hasn't been closed.

Because this runs in the browser rather than on the phone's operating system, it sidesteps silent mode and do-not-disturb entirely, useful if your phone alarm has ever failed to go off for exactly that reason. Just be aware it needs the tab open and the screen or laptop lid to stay on to actually ring. On a 24-hour clock 11:24 am is written 11:24, and spoken aloud it's twenty-four minutes past eleven in the morning. Timetables and rosters may show it as 11:24, and handwritten notes as 11.24 am. Setting the alarm to 11:24 am tomorrow morning works the same way: if the time has gone for today, the count runs through to it.

Common questions

Why use a browser alarm instead of my phone's built-in one?

Mainly for reliability against silent mode, do-not-disturb, or a phone left charging out of earshot. It's a useful backup or a desk-based alternative, though it depends on this tab staying open rather than running in the background of your phone.

Is there a cost to use this?

No, it's free, with no sign-up and no limit on how many times you set it. It just needs the tab left open until the time you've chosen arrives.

Will the alarm still ring if I close the browser tab?

No. The alarm only runs while this tab stays open — closing it, or closing the browser entirely, stops the countdown before it can ring. Keep the tab open in the background if you need it to go off later.

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.