Online alarm clock
Pick a time and a sound. The alarm rings until you stop it or snooze it, as long as this page stays open.
How to set an alarm
- Choose the alarm time. Or tap one of the quick times.
- Pick a sound and press Test sound to check the volume.
- Press Set alarm. The page shows how long until it rings.
Need a set length of time instead of a clock time? Use the countdown timer.
Questions people ask
Does the alarm work if the page is closed?
No. A website can only make sound while its tab is open. Leave this tab open, keep the volume up, and turn on Keep screen on so your device doesn't sleep.
How does snooze work?
Press Snooze 5 min and the alarm rings again five minutes later.
Can I use it as a wake-up alarm on my phone?
It works, but phones may pause web pages to save battery. For an overnight alarm, your phone's built-in clock app is more reliable. This page is ideal for naps, desk reminders and computers.
Can I set a time from a link?
Yes, add the time to the address, like onlineclock.app/alarm-clock/#06:30.