Set the alarm clock for 4:35 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 4:33 am Alarm clock for 4:34 am Alarm clock for 4:36 am Alarm clock for 4:37 am

Going to bed for a 4:35 am alarm

Asleep by 7:20 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:50 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:20 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.

4:35 am across the country

Sydney	4:35 am
Brisbane	4:35 am
Adelaide	4:05 am
Perth	2:35 am
Darwin	4:05 am

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

Online alarm clock for 4:35 am

While you wait for the mine-site bus, set the alarm for 4:35 am and keep an eye on the time without repeatedly checking the clock. That gives you a clear cue to collect your gear and move to the pickup point before 5:00 am, rather than leaving the hut or camp too early and standing outside longer than necessary.

A pre-dawn camp can already be noisy with air conditioning, showers, doors and other crews preparing for shift. Set the volume high enough to be heard over that background noise, then test it briefly from where the phone will sit. This browser alarm cannot sound once the page is no longer running, which could leave you rushing for the bus, so use the device’s built-in alarm as a backup if you might doze off.

Before settling in to wait at 4:35 am, work backwards from the next commitment after pickup, not just the departure itself. Keep boots, crib bag, water and site pass together, and leave a small buffer for the walk to the bus stop or an unexpected room check. That reserve helps protect the rest of the same day’s schedule when the night is quiet but camp movements take longer than expected.

Common questions

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.

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.