How to use the online alarm clock
An evening alarm at 7:21 pm is usually about getting dinner started, leaving for a night class, or reminding the kids it's nearly bedtime. Set it once, pick a sound that won't be lost in the evening noise, and this page will ring at 7:21 pm through your speakers.
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.
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 7:21 pm is written 19:21, and spoken aloud it's twenty-one minutes past seven in the evening. You'll also see it written 7.21 pm — a full stop instead of the colon means the same time. Whether you would say set alarm for 7:21 pm or put an alarm on for 7:21 pm, the steps are the same: pick a sound, press Start, leave the tab open.
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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