Set the alarm clock for 2:31 am

 

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

The alarm goes off in: ::
 
 

2:31 am across the country

Sydney2:31 am
Brisbane2:31 am
Adelaide2:01 am
Perth12:31 am
Darwin2:01 am

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

Online alarm clock for 2:31 am

Pull yourself away from checking the dawn tide and set the alarm for 2:31 am while the plan is still in front of you. With the board already in the car from the evening before, the signal can mark the moment to stop reviewing conditions, collect your keys and shift into departure mode. That leaves a useful margin before 3:00 am without turning the night into a long wait.

Your packed board makes the sound route worth checking before you settle down again. Audio can quietly switch to connected headphones, leaving the room silent even though the alarm appears ready. A brief test reveals where the tone will play and whether it is loud enough for this interruption. If this page is closed or the phone is allowed to sleep, no alarm will sound, so the dawn surf could begin without you as the tide moves on.

Before the pre-dawn drive to the coast, the outside air deserves a little thought. Humidity at 2:31 am can leave the windscreen, board cover or gear feeling damp, particularly near the water. A dry cloth kept beside the keys handles light condensation without delaying departure, while a light outer layer makes the change from the car to the open air less abrupt. Keeping those items together also avoids noisy searching through the house during the night.

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.