How to use the online alarm clock
Between three and six, most households are managing some kind of handover: work to home, school to training. An alarm for 2:39 pm helps keep it on schedule. Set it here and it'll ring right on 2:39 pm until you tell it to stop.
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.
It's free to use, doesn't need an account, and works the same in any modern browser, but it's honestly not meant to replace your phone for anything you can't afford to sleep through. Keep the tab open and the device awake, and it'll ring reliably at the time you set. On a 24-hour clock 2:39 pm is written 14:39, and spoken aloud it's twenty-one minutes to three in the afternoon. Written the Australian way that's 2.39 pm, and typed in a hurry it's often 2:39pm. Setting the alarm to 2:39 pm tomorrow morning works the same way: if the time has gone for today, the count runs through to it.
Common questions
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.
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.