Set the alarm clock for 4:30 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 4:28 am Alarm clock for 4:29 am Alarm clock for 4:31 am Alarm clock for 4:32 am

Going to bed for a 4:30 am alarm

Asleep by 7:15 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:45 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:15 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.

4:30 am across the country

Sydney	4:30 am
Brisbane	4:30 am
Adelaide	4:00 am
Perth	2:30 am
Darwin	4:00 am

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

Online alarm clock for 4:30 am

While you watch the clock for the moment to unload the catch at the wharf, set the alarm for 4:30 am and keep preparations within reach. That gives the crew a clear signal to start moving crates, ice and gear before the market opens. With 5:00 am approaching, the half-hour can cover a final check of the load and the unloading area without losing sight of the appointed time.

During the wait, this alarm page may sit behind a weather report, message thread or harbour information in another browser tab. It can still run in the background, but browser and phone settings may limit what it can do. The catch may miss its market window because this browser alarm will not sound after the page is closed or the phone goes to sleep. Leave the page open, keep the phone awake, turn the volume up and avoid relying on silent mode while attention is elsewhere.

Once unloading begins in the dark before dawn, leave a small buffer for the next job on the same day rather than filling every minute with work at the wharf. Note the latest sensible finishing time, then allow for rinsing equipment, securing the vehicle and travelling on. At 4:30 am, a torch, charged phone and gear placed in unloading sequence can prevent minor delays from consuming that buffer.

Common questions

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.

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.