Set the alarm clock for 3:00 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 3:00 am alarm

  • Asleep by 5:45 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 7:15 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 8:45 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.

3:00 am across the country

Sydney3:00 am
Brisbane3:00 am
Adelaide2:30 am
Perth1:00 am
Darwin2:30 am

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

Online alarm clock for 3:00 am

Waking to check dough that has already risen means the bakery shift has not quite begun yet. At 3:00 am, the first job is simply to get out of bed, reach the kitchen and see whether the batch is ready for shaping or needs a little longer. The alarm marks that clean handover from sleep to early preparation.

For this bake, confidence in the signal matters before bedtime, not when the dough is waiting. A brief test at a comfortable volume can confirm that the alarm is audible above a fan, air conditioner or closed bedroom door. Because a browser alarm cannot sound after its page is closed or the phone falls asleep, the dough could be left rising past the intended check; keeping the page active and using a separate backup alarm reduces that risk.

Once the 3:00 am check is finished, the remaining sleep is easier to protect when the next task is prepared in advance. Leave the bench clear, place the scraper and tray where they are easy to find, and keep the room dim during a short dough inspection. If the batch needs more time, a second clearly labelled alarm helps avoid repeatedly checking the clock before returning to bed.

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.