Set the alarm clock for 11:03 am

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

The alarm goes off in: ::

You can also try the other alarm clocks

Alarm clock for 11:01 am Alarm clock for 11:02 am Alarm clock for 11:04 am Alarm clock for 11:05 am

Going to bed for a 11:03 am alarm

Asleep by 1:48 am — 6 full sleep cycles, about 9 hours
Asleep by 3:18 am — 5 full sleep cycles, about 7 hours
Asleep by 4:48 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.

11:03 am across the country

Sydney	11:03 am
Brisbane	11:03 am
Adelaide	10:33 am
Perth	9:03 am
Darwin	10:33 am

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

How to use the online alarm clock

Between video calls and a late lunch, it's easy to lose track of the clock, which is why 11:03 am shows up so often as a midday alarm. This rings straight from your browser at 11:03 am. No app, no account, just a tab that needs to stay open.

Select a sound, hit Start, and that's the whole setup. The countdown runs inside this browser tab rather than on your device's operating system, so it needs to remain open, on a phone or laptop, until the alarm actually goes off.

A browser alarm like this one is handy when your phone's on silent, charging in another room, or you just don't want to unlock it and get pulled into notifications. The trade-off is honesty: it only rings while this tab stays open, so it's not a replacement for your phone alarm on a trip where the laptop lid might close. On a 24-hour clock 11:03 am is written 11:03, and spoken aloud it's three minutes past eleven in the morning. Written the Australian way that's 11.03 am, and typed in a hurry it's often 11:03am. Set an alarm for 11:03 am, set the alarm to 11:03 am, set my alarm for 11:03 am — all of it lands on this page and does the same thing.

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.