Set the alarm clock for 5:11 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 5:09 am Alarm clock for 5:10 am Alarm clock for 5:12 am Alarm clock for 5:13 am

Going to bed for a 5:11 am alarm

Asleep by 7:56 pm — 6 full sleep cycles, about 9 hours
Asleep by 9:26 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:56 pm — 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.

5:11 am across the country

Sydney	5:11 am
Brisbane	5:11 am
Adelaide	4:41 am
Perth	3:11 am
Darwin	4:41 am

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

Online alarm clock for 5:11 am

Breaking off from packing the esky at 5:11 am can feel abrupt, but that is the point of this alarm: it marks the moment to leave for the fish market while the catch is fresh. You still have time to check the ice, keys and fuel before 6:00 am, without letting those last jobs blur into a late departure.

Kitchen fans, running water or gear being loaded into the ute can easily cover a quiet signal. Set the volume above the surrounding noise and listen to a test tone from wherever you will be when 5:11 am arrives, rather than assuming a sound that works nearby will carry through the house. If the browser page is closed or your phone or computer falls asleep, the alarm will not sound and the market trip may start late.

Moving through the house this early calls for a signal that reaches you without waking everyone else. Keep the phone close to your packing area, choose a clear but brief tone, and avoid placing it against a hard benchtop that will amplify vibration. Have the esky and car keys near the door beforehand, so when the alarm sounds you can silence it promptly and head out with minimal disturbance.

Common questions

Can I use this on my phone instead of a laptop?

Yes, it works in a mobile browser the same way, but phones are more likely to lock the screen or sleep, which can stop the alarm from ringing. A laptop or desktop tends to be more reliable for this.

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.