If the alarm clock is not working on Windows 11/10 PC, you need to check notifications settings, reset Clock, etc. to fix the issue.

Learn how to add new clocks, set alarms, use built-in Timer & Stopwatch in Clock app in Windows 11 or Alarms & Clocks of Windows 10.

On Windows 11, you can use the Clock app to manage time with alarms, timers, and you can even use a stopwatch. In this guide, I'll show you how.