Online Alarm Clock
Set an alarm for a chosen time with countdown and audio alert.
Runs in your browser
Online Alarm Clock
Set an alarm for a chosen time with countdown and audio alert.
00:00:00
Ready
Before you start
Timers work while this page stays open and your device stays awake. Closing or refreshing clears the timer. Background operation or sleep can delay updates and alerts; do not rely on a browser alarm for an essential alert. Test sound before starting.
The alarm uses your device’s local time and shows the actual date and time zone. A repeated clock time selects the next occurrence; a missing clock time moves to the next day on which it exists.