Set the alarm clock for 3:54 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 3:52 am Alarm clock for 3:53 am Alarm clock for 3:55 am Alarm clock for 3:56 am

Going to bed for a 3:54 am alarm

Asleep by 6:39 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:09 pm — 5 full sleep cycles, about 7 hours
Asleep by 9:39 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.

3:54 am across the country

Sydney	3:54 am
Brisbane	3:54 am
Adelaide	3:24 am
Perth	1:54 am
Darwin	3:24 am

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

How to use the online alarm clock

An alarm for 3:54 am is usually about catching something before the rest of the world is awake: a ferry, a flight, or a change of shift. Set the time, pick a tone, and leave this tab open. At 3:54 am it'll ring through your device's speakers until you tell it to stop.

Start by selecting a tone from the dropdown, then hit Start to lock it in. From that point the page does the counting, and it'll ring once the time is reached, but only if the tab is still open somewhere on your device. Closing it, or the browser entirely, cancels the alarm.

Some people use this alongside a phone alarm rather than instead of it: a louder backup through laptop speakers, or a way to set a reminder without touching a phone at all. It won't survive the tab closing or the device sleeping, so for anything critical overnight, keep a second alarm running as well. On a 24-hour clock 3:54 am is written 03:54, and spoken aloud it's six minutes to four at night. Written the Australian way that's 3.54 am, and typed in a hurry it's often 3:54am. Set an alarm for 3:54 am, set the alarm to 3:54 am, set my alarm for 3:54 am — all of it lands on this page and does the same thing.

Common questions

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.

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.