How to use the online alarm clock
If the afternoon has you juggling pickups, training runs, or a second job starting later, 2:43 pm is worth setting properly rather than trusting memory. This tool rings at 2:43 pm straight from your browser, loud enough to notice over the usual afternoon noise at home.
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.
Unlike a phone alarm, this one won't ring if you close the tab, put the computer to sleep, or shut the lid, so it suits a desk, a kitchen bench, or anywhere the device stays powered on and awake. It's free to use and doesn't need an account, but it's not built for unattended overnight use. On a 24-hour clock 2:43 pm is written 14:43, and spoken aloud it's seventeen minutes to three in the afternoon. Written the Australian way that's 2.43 pm, and typed in a hurry it's often 2:43pm. Set an alarm for 2:43 pm, set the alarm to 2:43 pm, set my alarm for 2:43 pm — 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.
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