Set the alarm clock for 10:25 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 10:23 am Alarm clock for 10:24 am Alarm clock for 10:26 am Alarm clock for 10:27 am

Going to bed for a 10:25 am alarm

Asleep by 1:10 am — 6 full sleep cycles, about 9 hours
Asleep by 2:40 am — 5 full sleep cycles, about 7 hours
Asleep by 4:10 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.

10:25 am across the country

Sydney	10:25 am
Brisbane	10:25 am
Adelaide	9:55 am
Perth	8:25 am
Darwin	9:55 am

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

How to use the online alarm clock

If mornings mean footy training drop-offs, an early meeting, or getting the kids to school on time, 10:25 am is worth locking in properly. This rings straight from your browser at 10:25 am, and keeps ringing until you tell it to stop. No phone required nearby.

Select a sound, hit Start, and that's the whole setup. The countdown runs inside this browser tab rather than on your device's operating system, so it needs to remain open, on a phone or laptop, until the alarm actually goes off.

The advantage of a browser alarm is volume and reliability at a desk: laptop speakers are often louder and easier to hear across a room than a phone left in a bag. The catch is that it depends entirely on the tab staying open; if the browser closes or the laptop sleeps, the alarm won't fire. On a 24-hour clock 10:25 am is written 10:25, and spoken aloud it's twenty-five past ten in the morning. Timetables and rosters may show it as 10:25, and handwritten notes as 10.25 am. Whether you would say set alarm for 10:25 am or put an alarm on for 10:25 am, the steps are the same: pick a sound, press Start, leave the tab open.

Common questions

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.

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.