Stopwatch & Duration Calculator
Time something live, or calculate elapsed time between two clock times.
Mode
00:00:00.00
hh:mm:ss.cs
What is this tool?
This tool includes a client-side stopwatch (start, pause, reset) for timing anything in real time, plus a separate duration calculator that finds the elapsed time between a start time and an end time, including an option for end times on the next day.
How to use it
- Choose Stopwatch to start/pause/reset a live timer, or Duration to calculate elapsed time.
- For duration mode, enter a start and end time (check “next day” if the end time crosses midnight).
- Copy the result as needed.
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