Set the alarm clock for 3:41 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 3:39 am Alarm clock for 3:40 am Alarm clock for 3:42 am Alarm clock for 3:43 am

Going to bed for a 3:41 am alarm

Asleep by 6:26 pm — 6 full sleep cycles, about 9 hours
Asleep by 7:56 pm — 5 full sleep cycles, about 7 hours
Asleep by 9:26 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.

3:41 am across the country

Sydney	3:41 am
Brisbane	3:41 am
Adelaide	3:11 am
Perth	1:41 am
Darwin	3:11 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 3:41 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 3:41 am it'll ring through your device's speakers until you tell it to stop.

After picking a tone, press Start and leave the page open. It doesn't need an internet connection once it's running, but it does need the tab itself to stay open, so avoid closing the browser or letting the device fall asleep before the time is reached.

Unlike a phone alarm, this one won't ring if you close the tab, put the computer to sleep, or shut the lid, so it suits a desk, a kitchen bench, or anywhere the device stays powered on and awake. It's free to use and doesn't need an account, but it's not built for unattended overnight use. On a 24-hour clock 3:41 am is written 03:41, and spoken aloud it's nineteen minutes to four at night. Timetables and rosters may show it as 03:41, and handwritten notes as 3.41 am. Whether you would say set alarm for 3:41 am or put an alarm on for 3:41 am, the steps are the same: pick a sound, press Start, leave the tab open.

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.