How to use the online alarm clock
A midday alarm at 12:51 pm is usually about not losing track of lunch, a call, or the end of a break. Set it once, leave the tab open on your work computer, and it'll ring at 12:51 pm even if you've gotten lost in something else entirely.
Choose a sound before you press Start — something like a chime or a classic bell tends to work better than anything too gentle. Once it's running, the countdown happens right here in the browser, which means the tab needs to stay open in the background rather than being closed.
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 12:51 pm is written 12:51, and spoken aloud it's nine minutes to one in the afternoon. Written the Australian way that's 12.51 pm, and typed in a hurry it's often 12:51pm. Set an alarm for 12:51 pm, set the alarm to 12:51 pm, set my alarm for 12:51 pm — all of it lands on this page and does the same thing.
Common questions
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.
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.
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