Set the alarm clock for 3:19 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 3:17 am Alarm clock for 3:18 am Alarm clock for 3:20 am Alarm clock for 3:21 am

Going to bed for a 3:19 am alarm

Asleep by 6:04 pm — 6 full sleep cycles, about 9 hours
Asleep by 7:34 pm — 5 full sleep cycles, about 7 hours
Asleep by 9:04 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.

3:19 am across the country

Sydney	3:19 am
Brisbane	3:19 am
Adelaide	2:49 am
Perth	1:19 am
Darwin	2:49 am

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

Online alarm clock for 3:19 am

You’re waking at 3:19 am on the Australian end of a London call, while the people there are still finishing yesterday. Nothing has started yet, so use these first quiet moments to sit up, check the meeting details and let your eyes adjust before speaking. There are 41 minutes until 4:00 am, enough time to become properly alert without turning the wait into another sleep.

Your London call depends on hearing the signal, so test the alarm now, while a missed sound is still harmless. Set it briefly, confirm the volume is audible and notice whether headphones or silent settings change what you hear; then restore 3:19 am. Keep a separate phone alarm as backup, because this browser alarm cannot be relied on to wake you for the London call if the browser session ends or the phone sleeps.

A pre-dawn call can carry through an Australian home more than expected. Keep the alarm close enough to hear at 3:19 am, but lower than a sound meant to fill the whole room, and use vibration if it is dependable for you. Prepare water, headphones and notes beforehand so you are not opening cupboards, switching on bright hallway lights or searching near sleeping housemates during the night.

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.