Set the alarm clock for 9:57 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 9:55 am Alarm clock for 9:56 am Alarm clock for 9:58 am Alarm clock for 9:59 am

Going to bed for a 9:57 am alarm

Asleep by 12:42 am — 6 full sleep cycles, about 9 hours
Asleep by 2:12 am — 5 full sleep cycles, about 7 hours
Asleep by 3:42 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.

9:57 am across the country

Sydney	9:57 am
Brisbane	9:57 am
Adelaide	9:27 am
Perth	7:57 am
Darwin	9:27 am

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

Online alarm clock for 9:57 am

While preparing to lead the class on an excursion, you can set the alarm for 9:57 am before students begin gathering. That leaves the final few minutes before 10:00 am for checking the roll, permission notes and meeting point without repeatedly watching the clock. The alert marks the moment to bring everyone together and move into the next part of the morning.

A quick rehearsal while the excursion is still in preparation shows whether the chosen signal is clear enough to notice in a busy classroom. The alarm can be set briefly, allowed to sound, then returned to 9:57 am once its volume is confirmed. Keep the browser running and the computer awake; otherwise, the excursion reminder will not sound when the class needs to assemble. A separate phone alarm is sensible if the computer may be packed away beforehand.

As the class gets ready to leave late in the morning, changing light can make the room feel different from when the alarm was tested. Sun through classroom windows may wash out an on-screen cue, while a dimmed display can be easy to overlook. Before 9:57 am, positioning the screen away from glare and restoring a comfortable brightness makes the visual signal easier to spot. Hats, water bottles and excursion paperwork can then be checked under steady light before everyone heads outside.

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.