How to use the online alarm clock
Setting an alarm for 12:19 pm in the middle of the day sounds unnecessary until you've missed a lunch meeting because you were heads-down in something else. This rings through your browser at 12:19 pm, loud enough to notice at a desk, without needing your phone within reach.
Set your preferred sound, press Start, then leave the tab where it is. Everything happens inside the browser — no background app, no notification pushed from a server — so an open tab is what actually makes the alarm ring at the right time.
A browser alarm like this one is handy when your phone's on silent, charging in another room, or you just don't want to unlock it and get pulled into notifications. The trade-off is honesty: it only rings while this tab stays open, so it's not a replacement for your phone alarm on a trip where the laptop lid might close. On a 24-hour clock 12:19 pm is written 12:19, and spoken aloud it's nineteen minutes past twelve in the afternoon. You'll also see it written 12.19 pm — a full stop instead of the colon means the same time. Set an alarm for 12:19 pm, set the alarm to 12:19 pm, set my alarm for 12:19 pm — all of it lands on this page and does the same thing.
Common questions
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.
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.
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