Online Stopwatch with Lap Times

This on-screen stopwatch measures to a hundredth of a second: start sets it running, pause holds the time, and pressing start again continues from there instead of restarting. The lap button records the current moment and you can take as many laps as you like, with the newest at the top. Reset returns everything to zero and clears the lap list. Digits are shown in Persian numerals. Timing happens in the browser against the system clock, so there is nothing to install and nothing is sent anywhere.

This tool runs entirely in your browser. No data is sent to any server.

How to use it

1. 1

   Press start to begin timing.

2. 2

   Press lap to record a split; the list below fills in.

3. 3

   Pause to stop the clock, and reset to return to zero.

Frequently asked questions

How precise is the stopwatch?

It displays hundredths of a second. Real accuracy depends on browser and CPU load and is in the low milliseconds.

Are lap times relative to the start or the previous lap?

Each row shows total elapsed time since start, not the gap from the previous lap. To get a segment, subtract two consecutive rows.

Is the time lost if I close the tab?

Yes, nothing is saved and the stopwatch resets on reload. Note the times down if you need them long term.