Set the alarm clock for 3:36 am

 

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::
 
 

Going to bed for a 3:36 am alarm

  • Asleep by 6:21 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 7:51 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 9:21 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.

3:36 am across the country

Sydney3:36 am
Brisbane3:36 am
Adelaide3:06 am
Perth1:36 am
Darwin3:06 am

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

How to use the online alarm clock

Tradies, nurses on night shift, and anyone driving to the airport before the birds wake up all end up here around 3:36 am. This alarm rings straight from your browser tab at 3:36 am, loud enough to cut through a quiet house, without needing an app or an account first.

Using it is simple: pick a ringtone from the list, press Start, and leave this tab open in your browser. The alarm runs entirely on this page, so closing the browser will stop it from going off. Come back a minute early if you're not sure you trust it yet.

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 3:36 am is written 03:36, and spoken aloud it's twenty-four minutes to four at night. Written the Australian way that's 3.36 am, and typed in a hurry it's often 3:36am. Setting the alarm to 3:36 am tomorrow morning works the same way: if the time has gone for today, the count runs through to it.

Common questions

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.

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.