Set the alarm clock for 11:03 pm

 

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

The alarm goes off in: ::
 
 

11:03 pm across the country

Sydney11:03 pm
Brisbane11:03 pm
Adelaide10:33 pm
Perth9:03 pm
Darwin10:33 pm

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 11:03 pm at night often comes down to one thing: not trusting yourself to notice the time once you're deep into something else, whether that's study, a show, or work that's run late. This will ring at 11:03 pm through your device's speakers until you stop it.

Choose a sound before you press Start — something like a chime or a classic bell tends to work better than anything too gentle. Once it's running, the countdown happens right here in the browser, which means the tab needs to stay open in the background rather than being closed.

It's free to use, doesn't need an account, and works the same in any modern browser, but it's honestly not meant to replace your phone for anything you can't afford to sleep through. Keep the tab open and the device awake, and it'll ring reliably at the time you set. On a 24-hour clock 11:03 pm is written 23:03, and spoken aloud it's three minutes past eleven at night. You'll also see it written 11.03 pm — a full stop instead of the colon means the same time. Whether you would say set alarm for 11:03 pm or put an alarm on for 11:03 pm, the steps are the same: pick a sound, press Start, leave the tab open.

Common questions

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.

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.