Tools
Online Alarm Clock
Set a clock time rather than a duration, and the alarm sounds at that moment.
Sound the alarm at
No alarm set yet.
What this one is for
- Set a time, not a length
- Runs in a browser tab
- Same clear alarm
An alarm fires at a clock time rather than after a duration, which suits anything anchored to the world outside the room: a call, a train, an oven at half past.
Worth knowing
- Set a clock time rather than a duration.
- Rolls to tomorrow automatically if the time has already passed today.
- Keep the tab open; a browser tab is not a substitute for a phone alarm.
Related timers
- Online Timer
- Simple Timer
- Fullscreen Timer
- Large Timer
- Visual Timer
- Timer With Alarm
- Timer With Sound
- Online Countdown
Questions people ask
What is the difference between an alarm and a timer?
An alarm fires at a set clock time, such as 14:30. A timer counts down a length, such as fifteen minutes from now. Both end with the same sound here.
Does it work offline?
After your first visit, yes. The page is cached by your browser, so it opens and runs without a connection.
Is the online alarm clock really free?
Yes, for personal and commercial use, with no sign-up. Use it in classrooms, gyms and streams without asking.