Set the alarm clock for 5:21 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 5:19 am Alarm clock for 5:20 am Alarm clock for 5:22 am Alarm clock for 5:23 am

Going to bed for a 5:21 am alarm

Asleep by 8:06 pm — 6 full sleep cycles, about 9 hours
Asleep by 9:36 pm — 5 full sleep cycles, about 7 hours
Asleep by 11:06 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.

5:21 am across the country

Sydney	5:21 am
Brisbane	5:21 am
Adelaide	4:51 am
Perth	3:21 am
Darwin	4:51 am

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

Online alarm clock for 5:21 am

As you hand the property check over to the incoming ranger, set the alarm for 5:21 am so the changeover does not drift into the first round. That leaves a clear window before 6:00 am for sharing gate conditions, noting damaged fencing and confirming which tracks have already been covered.

For a handover this early, check the phone’s sound settings before relying on the browser alarm. Silent mode can leave the alert unheard even when the on-screen timer reaches 5:21 am, so raise the volume and test an alert while both rangers are present. If the browser page is no longer open or the phone has gone to sleep, the alarm will not sound, which could delay the property inspection.

During a pre-dawn round, the surroundings may be quiet enough for footsteps, livestock and a vehicle on gravel to mask a soft alert. Keep the phone close rather than inside a ute or gear bag, and choose a volume that remains noticeable as birds and station activity build towards sunrise. A brief spoken check between outgoing and incoming rangers can also confirm who is responding when the alarm sounds.

Common questions

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.

What happens once the alarm goes off?

It rings through your device's speakers on a loop until you stop it from this page. There's no separate app notification, so make sure your volume is turned up before you rely on it.