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: ::

You can also try the other alarm clocks

Alarm clock for 11:23 am Alarm clock for 11:24 am Alarm clock for 11:26 am Alarm clock for 11:27 am

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

Sydney	11:25 am
Brisbane	11:25 am
Adelaide	10:55 am
Perth	9:25 am
Darwin	10:55 am

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

Online alarm clock for 11:25 am

While you watch the clock for the right moment to head to the worksite after the morning traffic, set the alarm for 11:25 am. It gives you a clear cue to collect your keys, check the route and leave before 12:00 pm, without repeatedly glancing at the time while you wait.

For this worksite departure, leave enough battery power and adjust the computer’s sleep settings before relying on the alarm. Choose 11:25 am, confirm the alarm is active and keep the sound loud enough to notice. If the page is closed or the computer falls asleep, the alarm cannot sound, so the planned worksite departure may be delayed. A phone alarm is a sensible backup when you need to pack the computer or step away before leaving.

As the run to the worksite draws closer, listen for changes in the late-morning noise around you. Traffic outside may sound steadier, while nearby construction, deliveries or machinery can mask a quiet alert. Keep the alarm audible from where you are waiting, and place keys or paperwork nearby so the 11:25 am signal leads straight into leaving rather than another round of preparation.

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.