Set the alarm clock for 4:34 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 4:32 am Alarm clock for 4:33 am Alarm clock for 4:35 am Alarm clock for 4:36 am

Going to bed for a 4:34 am alarm

Asleep by 7:19 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:49 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:19 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.

4:34 am across the country

Sydney	4:34 am
Brisbane	4:34 am
Adelaide	4:04 am
Perth	2:34 am
Darwin	4:04 am

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

Online alarm clock for 4:34 am

Keep watching the clock while you wait for the last bus, knowing that missing it means taking a taxi. An alarm set for 4:34 am lets you look away without losing track of the appointed moment, while still leaving 26 minutes before 5:00 am. That can be enough time to check the stop number, have your fare ready and move closer to where the bus will pull in.

Your surroundings should guide the alarm sound. A gentle tone suits a quiet shelter where you are already alert, while a persistent one makes more sense if traffic, conversation or headphones could mask the first notes. Set the volume high enough to notice without startling everyone nearby, then keep the browser running and the screen awake. If the page is closed or your phone goes to sleep, the alarm may not sound and the last bus could leave without you.

Waiting at 4:34 am can make the rest of the day feel distant, so protect a small buffer before whatever comes next. Note the likely arrival time, allow for the walk from the stop and avoid scheduling the next task immediately afterwards. If the service runs late, that spare time keeps a night-time delay from pushing every later commitment off track.

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.