Set the alarm clock for 9:47 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 9:45 am Alarm clock for 9:46 am Alarm clock for 9:48 am Alarm clock for 9:49 am

Going to bed for a 9:47 am alarm

Asleep by 12:32 am — 6 full sleep cycles, about 9 hours
Asleep by 2:02 am — 5 full sleep cycles, about 7 hours
Asleep by 3:32 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.

9:47 am across the country

Sydney	9:47 am
Brisbane	9:47 am
Adelaide	9:17 am
Perth	7:47 am
Darwin	9:17 am

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

How to use the online alarm clock

If the school run is tight, an alarm at 9:47 am buys you the minutes you actually need to get everyone dressed, fed, and out the door. Set the time, choose a tone that won't get ignored, and this page will ring at 9:47 am through your speakers for as long as you let it.

Pick whichever sound you're most likely to actually notice, then press Start. The alarm is tied to this browser tab, so it needs to stay open. Minimising the window is fine, but closing the tab or the browser will stop the countdown before it ever rings.

Compared to a phone, this alarm has one job and nothing else competing for attention — no messages, no app switching. It's free and doesn't ask for sign-up, but it only works while the tab is open and the device stays awake, so it suits daytime use at a desk better than an overnight bedroom alarm. On a 24-hour clock 9:47 am is written 09:47, and spoken aloud it's thirteen minutes to ten in the morning. Written the Australian way that's 9.47 am, and typed in a hurry it's often 9:47am. 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

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.

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.