Set the alarm clock for 3:03 pm

 

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

The alarm goes off in: ::
 
 

3:03 pm across the country

Sydney3:03 pm
Brisbane3:03 pm
Adelaide2:33 pm
Perth1:03 pm
Darwin2:33 pm

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

How to use the online alarm clock

The arvo slump hits hard after lunch, and an alarm for 3:03 pm is often just a way to stop a short break turning into an hour. Set it, pick a sound, and this page will ring at 3:03 pm through your speakers to get you back on track.

After picking a tone, press Start and leave the page open. It doesn't need an internet connection once it's running, but it does need the tab itself to stay open, so avoid closing the browser or letting the device fall asleep before the time is reached.

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 3:03 pm is written 15:03, and spoken aloud it's three minutes past three in the afternoon. Timetables and rosters may show it as 15:03, and handwritten notes as 3.03 pm. Setting the alarm to 3:03 pm tomorrow morning works the same way: if the time has gone for today, the count runs through to it.

Common questions

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.

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.

Can I change the alarm sound?

Yes, there's a short list of tones to choose from before you press Start. Pick whichever one you're most likely to actually hear — softer sounds are easier to sleep through than a firm chime or bell.