Set the alarm clock for 12:25 am

 

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::
 
 

12:25 am across the country

Sydney12:25 am
Brisbane12:25 am
Adelaide11:55 pm
Perth10:25 pm
Darwin11:55 pm

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

How to use the online alarm clock

If you're still up rather than getting up, setting this for 12:25 am gives you a hard stop. Daylight saving time or not, the sun won't be up yet. It works the same regardless of the season, ringing at 12:25 am sharp through your speakers, so you can finally close the laptop and get some sleep.

Start by selecting a tone from the dropdown, then hit Start to lock it in. From that point the page does the counting, and it'll ring once the time is reached, but only if the tab is still open somewhere on your device. Closing it, or the browser entirely, cancels the alarm.

Some people use this alongside a phone alarm rather than instead of it: a louder backup through laptop speakers, or a way to set a reminder without touching a phone at all. It won't survive the tab closing or the device sleeping, so for anything critical overnight, keep a second alarm running as well. On a 24-hour clock 12:25 am is written 00:25, and spoken aloud it's twenty-five past twelve at night. Written the Australian way that's 12.25 am, and typed in a hurry it's often 12:25am. Set an alarm for 12:25 am, set the alarm to 12:25 am, set my alarm for 12:25 am — all of it lands on this page and does the same thing.

Common questions

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.

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.