How to use the stopwatch the Alarms & Clock app in Windows 10

To time something using the stopwatch:

  1. To launch the app, select Start  and select Alarms & Clock from the app list or type its name into the search box.

  2. Select Stopwatch, and then Start.

  3. To mark a lap or split as the stopwatch runs, select Laps/Splits (the flag).

  4. Select Expand to increase the size of the stopwatch display at any time.

  5. Select Pause to stop the clock.

  6. Select Reset to clear the clock.

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