Space set / stop alarm · F full screen

Set the alarm time

Recently used

Online Alarm Clock

Set the hour and minute, click Set and the alarm will ring at that time. The clock shows the current time in the meantime.

Choose the time – Click Set alarm and pick the hour and minute, or click a preset time below.
Set the alarm – Click Set alarm. The page remembers it and the tab title shows the alarm time.
Wake up – At the set time the digits blink and the alarm sounds until you click Stop alarm.

The alarm only works while the browser and this tab stay open – it will not ring if the computer is off or asleep. Turn up the volume and use Test sound to check it. Shortcuts: Space set / stop alarm, F full screen.

Frequently asked questions

Will the alarm work if I close the browser?

No. A web page cannot run when the browser is closed or the computer is asleep. Keep the tab open; it may be in the background.

Does the alarm work without the internet?

Yes. Once the page is loaded it needs no connection – the sound is generated in the browser.

Can I use it on my phone?

Yes, but phones put background tabs to sleep, so keep the screen on and the browser in the foreground. For nightly use, a real alarm clock app is more reliable.