Set the alarm clock for 10:11 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 10:09 am Alarm clock for 10:10 am Alarm clock for 10:12 am Alarm clock for 10:13 am

Going to bed for a 10:11 am alarm

Asleep by 12:56 am — 6 full sleep cycles, about 9 hours
Asleep by 2:26 am — 5 full sleep cycles, about 7 hours
Asleep by 3:56 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.

10:11 am across the country

Sydney	10:11 am
Brisbane	10:11 am
Adelaide	9:41 am
Perth	8:11 am
Darwin	9:41 am

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

How to use the online alarm clock

Getting out the door for the school run or the commute into the city gets easier when 10:11 am is locked in properly. Choose a sound, hit start, and this browser alarm will ring at 10:11 am whether you're upstairs making lunches or still half asleep. Just keep the tab open so it has a chance to go off.

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.

Compared to a phone, this alarm has one job and nothing else competing for attention — no messages, no app switching. It's free and doesn't ask for sign-up, but it only works while the tab is open and the device stays awake, so it suits daytime use at a desk better than an overnight bedroom alarm. On a 24-hour clock 10:11 am is written 10:11, and spoken aloud it's eleven minutes past ten in the morning. Written the Australian way that's 10.11 am, and typed in a hurry it's often 10:11am. Whether you would say set alarm for 10:11 am or put an alarm on for 10:11 am, 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.