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Alarm Clock

Set as many alarms as you like, choose from fifty tones and keep the tab open — the alarm rings on time.

Setting an alarm

Pick a time, add a label if it’s useful to you, choose a tone, and press Add. The alarm sounds at that time in your own local zone — for as long as this page stays open in a tab somewhere.

Add as many separate alarms as you need; each is listed underneath and can be switched off individually without being deleted outright. When one goes off, you can stop it entirely or snooze it for five minutes.

What to actually expect from a browser-based alarm

Two things matter before you rely on this for anything important. First, the tab genuinely has to stay open — a browser cannot sound an alarm from a page that’s been closed. Second, most browsers refuse to play any sound at all until you’ve interacted with the page in some way, so press something once (adding the alarm itself counts) and the tone will be allowed through from then on.

On a phone specifically, a locked screen or a suspended background tab can delay the sound past the time you set. For anything you genuinely can’t afford to miss, set your device’s own built-in alarm as a backup alongside this one.

Questions people ask

How many separate alarms can I actually set?

As many as you need. They’re listed underneath and each one can be switched off individually without needing to be deleted.

Do my alarms survive a page reload?

Yes — they’re stored locally on your own device. The page still needs to be open for one to actually ring, though.

How long does the snooze actually last?

Five minutes, and it can be used as many times as you like in a row.

Can I set an alarm for a different time zone than my own?

Not directly — the alarm always uses your own local time. To work out what that is for another city first, use the time zone converter.

Will this reliably wake me up in the morning?

It can, but a phone alarm is genuinely the safer choice overnight — a locked screen may suspend the browser tab entirely, silencing this one.

Put this tool on your own site

Copy the line below into any page. It loads only the tool, keeps working on its own, and needs nothing else installed.