Set the alarm clock for 9:45 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 9:43 am Alarm clock for 9:44 am Alarm clock for 9:46 am Alarm clock for 9:47 am

Going to bed for a 9:45 am alarm

Asleep by 12:30 am — 6 full sleep cycles, about 9 hours
Asleep by 2:00 am — 5 full sleep cycles, about 7 hours
Asleep by 3:30 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.

9:45 am across the country

Sydney	9:45 am
Brisbane	9:45 am
Adelaide	9:15 am
Perth	7:45 am
Darwin	9:15 am

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

Online alarm clock for 9:45 am

As you hand over the job of taking your child’s uniform to the school swimming carnival, set the alarm for 9:45 am and tell the other person what the signal means. That leaves a clear checkpoint before 10:00 am, when the uniform may need to be at school rather than still sitting by the front door or in the car.

The swimming carnival handover may happen while you are using another app, so keep this alarm page open even if its tab moves into the background. Some browsers limit what a background page can do, particularly after the screen has been inactive. If the page is closed or the device goes to sleep, the alarm will not sound, and the uniform handover could be missed. Leave the device awake, keep the volume audible and check that 9:45 am is displayed before you switch tasks.

For a mid-morning carnival drop-off, put the uniform in a breathable bag rather than sealing damp swimmers or a towel inside plastic. Australian mornings can already feel humid by this hour, while outdoor air may be warmer than it was at school arrival. Keep dry clothing separate, and place the bag somewhere shaded and visible to the person taking over.

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.