Online alarm clock

About this alarm

Pick the time you want the alarm to sound and press Set. The clock above shows your current local time so you can see exactly how long you have, and the page tells you how far away the alarm is.

If the time you choose has already passed today, the alarm is set for that time tomorrow instead — so setting a 7:00 alarm late at night does what you would expect.

The alarm sounds in this browser tab, so the tab needs to stay open for it to ring. The tab title changes when the alarm goes off, so you will notice it even while working in another window.