Set the alarm clock for 11:20 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:20 am alarm

  • Asleep by 2:05 am — 6 full sleep cycles, about 9 hours
  • Asleep by 3:35 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:05 am — 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.

11:20 am across the country

Sydney11:20 am
Brisbane11:20 am
Adelaide10:50 am
Perth9:20 am
Darwin10:50 am

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

How to use the online alarm clock

A quick nap over lunch only works if something reliably wakes you up again, and 11:20 am is a common target for exactly that. Set the time, pick a tone, and this tool will ring at 11:20 am through your speakers so the rest of your day isn't wrecked.

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.

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 11:20 am is written 11:20, and spoken aloud it's twenty past eleven in the morning. You'll also see it written 11.20 am — a full stop instead of the colon means the same time. If you need it loud, turn the system volume up before you start: the alarm plays at whatever the device is set to.

Common questions

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.

Why use a browser alarm instead of my phone's built-in one?

Mainly for reliability against silent mode, do-not-disturb, or a phone left charging out of earshot. It's a useful backup or a desk-based alternative, though it depends on this tab staying open rather than running in the background of your phone.