Set the alarm clock for 9:12 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 9:10 am Alarm clock for 9:11 am Alarm clock for 9:13 am Alarm clock for 9:14 am

Going to bed for a 9:12 am alarm

Asleep by 11:57 pm — 6 full sleep cycles, about 9 hours
Asleep by 1:27 am — 5 full sleep cycles, about 7 hours
Asleep by 2:57 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.

9:12 am across the country

Sydney	9:12 am
Brisbane	9:12 am
Adelaide	8:42 am
Perth	7:12 am
Darwin	8:42 am

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

Online alarm clock for 9:12 am

You have only just woken, so set the alarm for 9:12 am before getting ready to head to the job site after the morning traffic. That gives you a clear departure point without rushing straight out of bed, while 10:00 am remains an easy reference for judging how much of the morning is still available.

Your trip to the site depends on hearing the alert, so check the sound setting before relying on it: silent mode can prevent the alarm from being audible even when the page appears ready. Leave the browser alarm running and keep the computer awake; if either stops, there will be no warning that it is time to leave for the site. A quick sound check now can reveal a muted speaker or volume set too low.

Before settling into the morning, note what follows the site visit later today and preserve a small buffer between the two commitments. At 9:12 am, use the remaining preparation time for essentials such as checking the address, road conditions and anything needed on arrival. Keeping those tasks contained protects the gap before your next appointment if traffic has not cleared as quickly as expected.

Common questions

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.

Is there a cost to use this?

No, it's free, with no sign-up and no limit on how many times you set it. It just needs the tab left open until the time you've chosen arrives.