Set the alarm clock for 9:31 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 9:29 am Alarm clock for 9:30 am Alarm clock for 9:32 am Alarm clock for 9:33 am

Going to bed for a 9:31 am alarm

Asleep by 12:16 am — 6 full sleep cycles, about 9 hours
Asleep by 1:46 am — 5 full sleep cycles, about 7 hours
Asleep by 3:16 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.

9:31 am across the country

Sydney	9:31 am
Brisbane	9:31 am
Adelaide	9:01 am
Perth	7:31 am
Darwin	9:01 am

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

Online alarm clock for 9:31 am

Handing the Melbourne office contact over to someone else at 9:31 am means making the change clear before you step away. Set the alarm for the exact moment they should take over, leaving enough room to pass on names, current tasks and anything awaiting a reply before 10:00 am. The alert can mark the handover point without relying on either person to watch the clock.

A quick sound check now avoids discovering a problem when the Melbourne office is waiting. Set a brief test alarm, confirm that the volume is audible, then reset it for 9:31 am and leave the sound controls alone. A missed office handover is still possible if this page is closed or the computer goes to sleep, as the browser alarm cannot sound in those conditions; keep a separate phone alarm if nobody will remain near the screen.

People elsewhere in the house may already be working, studying or finishing a late breakfast during the morning. Choose a volume that reaches the person taking over without carrying through every room, and place the computer nearby rather than turning the alert up sharply. If a shared space is busy around 9:31 am, agree beforehand who will silence the alarm so it does not continue while the Melbourne contact is being transferred.

Common questions

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.

Will the alarm still ring if I close the browser tab?

No. The alarm only runs while this tab stays open — closing it, or closing the browser entirely, stops the countdown before it can ring. Keep the tab open in the background if you need it to go off later.

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.