Time & Date
Stopwatch
Start, pause, reset, and record lap times directly in your browser.
Ready.
Educational estimates only. Not medical, legal, tax, or financial advice.
Guide: Stopwatch
What it does
Measures elapsed time in the browser and stores lap rows while the page stays open.
How to use it
Press Start, use Lap to save a split time, Pause when needed, and Reset to clear the timer.
Formula
Elapsed time = current browser timestamp - start timestamp + saved elapsed time.
Example
Use laps to time exercise sets, cooking stages, study sprints, or simple work intervals.
FAQs
Does the stopwatch keep running if I close the page?
No. The stopwatch runs in your current browser tab and resets if the page is closed or reloaded.
Are lap times sent to a server?
No. Lap times are kept in the browser page only unless you copy them yourself.
How precise is the stopwatch?
It is suitable for everyday timing. Browser scheduling, device sleep, and heavy tabs can affect precision.