Set the alarm clock for 3:04 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 3:04 am alarm

  • Asleep by 5:49 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 7:19 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 8:49 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.

3:04 am across the country

Sydney3:04 am
Brisbane3:04 am
Adelaide2:34 am
Perth1:04 am
Darwin2:34 am

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

Online alarm clock for 3:04 am

Pause your final checks for the winter drive to Victoria’s ski slopes when the 3:04 am alarm sounds. It marks a clear point to stop packing, checking road conditions or loading the car and move on to departure. With 4:00 am approaching, there is still time to settle everyone into the vehicle without letting one last task quietly delay the trip.

Against a heater, conversation or luggage being shifted around, a quiet alarm can disappear into the background. Set the volume high enough to be distinct from those sounds and place the phone where the signal is easy to hear, then test it before returning to your preparations. This browser alarm needs its session running and the phone awake; if either stops, no signal will interrupt the ski-trip preparations.

Before leaving at this hour, choose something simple that can be finished without adding another long pause to the departure routine. Water and a light snack suit the moment better than a large meal that keeps everyone at the kitchen table. Pack extra drinks and anything more substantial for a planned stop, where the driver can pull over safely rather than trying to eat while travelling on dark winter roads.

Common questions

Is this alarm accurate across daylight saving time?

It uses your device's local clock, so as long as your computer's time and date settings are correct, it'll adjust automatically when daylight saving time starts or ends.

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.