Set the alarm clock for 4:13 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 4:11 am Alarm clock for 4:12 am Alarm clock for 4:14 am Alarm clock for 4:15 am

Going to bed for a 4:13 am alarm

Asleep by 6:58 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:28 pm — 5 full sleep cycles, about 7 hours
Asleep by 9:58 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.

4:13 am across the country

Sydney	4:13 am
Brisbane	4:13 am
Adelaide	3:43 am
Perth	2:13 am
Darwin	3:43 am

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

Online alarm clock for 4:13 am

Breaking away from an online game with European players is harder when the match is still unfolding, so a 4:13 am alarm gives you a clear point to stop playing. It can mark the moment to finish the current round, say goodnight to the group and step away before 5:00 am arrives. That boundary is useful when overseas teammates are lively but most of Australia is still asleep.

For a signal you will rely on mid-game, an advance check removes uncertainty. Set the alarm briefly, keep the sound at the level you intend to use and confirm that it is distinct from the game audio. Then restore 4:13 am and leave the alarm page running. Your game may continue without the alert if the browser page is closed or the computer falls asleep, so a separate phone alarm provides sensible backup when stopping on time matters.

Hours of screen light can make the room feel oddly bright at this point of the night. Before joining the match, a dim lamp behind or beside the monitor can soften the contrast without shining into your eyes. When the alarm sounds, switching off the monitor and leaving the room lighting low makes the change from play to a quiet Australian pre-dawn less abrupt.

Common questions

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.

Is this alarm accurate across daylight saving time?

It uses your device's local clock, so as long as your computer's time and date settings are correct, it'll adjust automatically when daylight saving time starts or ends.

Can I use this on my phone instead of a laptop?

Yes, it works in a mobile browser the same way, but phones are more likely to lock the screen or sleep, which can stop the alarm from ringing. A laptop or desktop tends to be more reliable for this.

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.