Quick utilities
About this tool
Start, stop and reset the clock, or take laps while it runs. Timing comes from the browser performance API rather than from a counter, so it stays accurate when the tab is throttled.
How to use it
Set the values in the stopwatch above and the result updates as you type. Everything runs in your own browser — there is no account, no upload and no server-side calculation, so nothing you type is transmitted or stored.
More Time & Date tools
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