Set the alarm clock for 4:32 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 4:30 am Alarm clock for 4:31 am Alarm clock for 4:33 am Alarm clock for 4:34 am

Going to bed for a 4:32 am alarm

Asleep by 7:17 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:47 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:17 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.

4:32 am across the country

Sydney	4:32 am
Brisbane	4:32 am
Adelaide	4:02 am
Perth	2:32 am
Darwin	4:02 am

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

Online alarm clock for 4:32 am

You’re just waking at 4:32 am, with an early road-train shift still ahead and nothing underway yet. Setting the alarm for this exact time gives you a clear starting point for getting dressed, checking your gear and preparing to leave. With 5:00 am approaching, the next 28 minutes can cover those first practical jobs without turning the morning into a rush.

Your road-train departure may involve checking another app while the alarm page sits behind it. The alarm can still work when its browser tab remains open in the background, so keep the page running and leave the sound audible. If the browser is closed or your phone falls asleep, the alarm may not sound for your road-train shift; use a separate alarm as backup when missing the departure would disrupt the run.

Before heading out at this hour, match your departure time to the route rather than assuming every kilometre will be quick. Roads may be quiet before dawn, but depot access, fuel stops, wildlife and changing conditions can add time. Check the expected journey length while you are getting ready, then allow a sensible buffer so the drive begins steadily instead of with pressure to make up minutes.

Common questions

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.

Can I change the alarm sound?

Yes, there's a short list of tones to choose from before you press Start. Pick whichever one you're most likely to actually hear — softer sounds are easier to sleep through than a firm chime or bell.