Set the alarm clock for 11:25 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:25 am alarm

  • Asleep by 2:10 am — 6 full sleep cycles, about 9 hours
  • Asleep by 3:40 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:10 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.

11:25 am across the country

Sydney11:25 am
Brisbane11:25 am
Adelaide10:55 am
Perth9:25 am
Darwin10:55 am

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

How to use the online alarm clock

Shift workers switching over around midday often need an alarm that isn't tied to their phone being nearby. This one rings at 11:25 am straight from the browser tab, so a laptop left open on the kitchen table can do the job just as well.

Using it is simple: pick a ringtone from the list, press Start, and leave this tab open in your browser. The alarm runs entirely on this page, so closing the browser will stop it from going off. Come back a minute early if you're not sure you trust it yet.

This works well as a second alarm, one that isn't tangled up with phone notifications, do-not-disturb settings, or low battery. It genuinely won't ring if the tab gets closed or the device goes to sleep, so treat it as a backup or a work-desk tool rather than the only alarm for something important. On a 24-hour clock 11:25 am is written 11:25, and spoken aloud it's twenty-five past eleven in the morning. You'll also see it written 11.25 am — a full stop instead of the colon means the same time. Setting the alarm to 11:25 am tomorrow morning works the same way: if the time has gone for today, the count runs through to it.

Common questions

Can I set more than one alarm at a time?

This page is built around a single alarm at a time. For multiple alarms, open a separate tab for each one and set a different time in each, keeping every tab open until it's rung.

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.