Set the alarm clock for 10:31 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 10:31 am alarm

  • Asleep by 1:16 am — 6 full sleep cycles, about 9 hours
  • Asleep by 2:46 am — 5 full sleep cycles, about 7 hours
  • Asleep by 4:16 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.

10:31 am across the country

Sydney10:31 am
Brisbane10:31 am
Adelaide10:01 am
Perth8:31 am
Darwin10:01 am

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

Online alarm clock for 10:31 am

You are halfway through getting everyone organised when the 10:31 am alarm needs to pull you away and start moving the class towards the excursion departure point. That leaves enough breathing room before 11:00 am to gather hats, water bottles and permission notes, check the roll, and handle the inevitable last-minute question without turning the transition into a rush.

With excursion preparations spread across the room, the alarm page may slip behind the roll, timetable or map you are checking. It can keep counting there, but some browsers reduce activity on background pages, so leave sound enabled and return to the alarm before departure time. If the page is closed or the phone falls asleep, the alarm cannot sound, which could leave the class waiting while you continue another task. A separate phone alarm is a sensible backup for a fixed departure.

As the class shifts from the room to the bus bay in the late morning, changing light can make the move less comfortable than expected. Before 10:31 am, open blinds gradually rather than flooding a dim classroom at once, then check whether the outdoor meeting spot is already in full sun. In much of Australia, hats and a shaded roll-call point are practical even before midday; having both settled beforehand keeps the final head count focused.

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.