Set the alarm clock for 11:31 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:31 am alarm

  • Asleep by 2:16 am — 6 full sleep cycles, about 9 hours
  • Asleep by 3:46 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:16 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.

11:31 am across the country

Sydney11:31 am
Brisbane11:31 am
Adelaide11:01 am
Perth9:31 am
Darwin11:01 am

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

Online alarm clock for 11:31 am

You’re midway through guiding visitors around a koala recovery centre when you need to break away at 11:31 am. Set the alarm for that exact time so you can finish the current explanation, hand the group to a colleague and move on to the next duty. With 12:00 pm approaching, the alert also gives you a clear boundary before the morning schedule rolls into midday.

Your koala tour may continue through quiet areas where your phone is set to silent, so check the alert volume and sound settings before returning to the group. Keep this page running and leave the phone awake: the browser alarm cannot sound after the page stops operating or the phone sleeps, which could leave the tour without its planned handover. A quick test alert beforehand confirms that the selected tone can be heard above conversation and nearby outdoor noise.

Moving between koala enclosures late in the morning can mean stepping from sheltered paths into humid outdoor air. Keep water accessible, choose a shaded place for the 11:31 am handover, and allow a moment to adjust any notes before addressing the next group. If the air feels heavy, protect printed materials in a folder and avoid leaving the phone on a damp surface while the alarm is running.

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.