Set the alarm clock for 9:17 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 9:15 am Alarm clock for 9:16 am Alarm clock for 9:18 am Alarm clock for 9:19 am

Going to bed for a 9:17 am alarm

Asleep by 12:02 am — 6 full sleep cycles, about 9 hours
Asleep by 1:32 am — 5 full sleep cycles, about 7 hours
Asleep by 3:02 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.

9:17 am across the country

Sydney	9:17 am
Brisbane	9:17 am
Adelaide	8:47 am
Perth	7:17 am
Darwin	8:47 am

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

Online alarm clock for 9:17 am

Hand the café station to the next person at 9:17 am, while the breakfast rush is still moving and each unfinished job is easy to name. An alarm at that moment can mark the changeover without waiting for a quiet patch. With 10:00 am still ahead, there is time for the incoming worker to settle into the flow before the morning shifts again.

During a noisy breakfast service, headphones can quietly take over the alarm sound even when the phone itself seems ready. Check where audio is being sent before relying on the signal, and remove or disconnect the headphones if the alert needs to be heard across the counter. The breakfast handover will receive no warning if this page has been closed or the phone has gone to sleep, so keep both active until 9:17 am.

Once the café handover is arranged, fit food and drink around the work still happening rather than the clock alone. A few sips of water or a quick bite before 9:17 am are easier to manage than a full meal during the morning rush. Leave a hot flat white or anything requiring a proper sit-down break until the next person has taken over and the bench is clearly covered.

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.