The online stopwatch counts the time that has elapsed since you clicked the "Start" button to milliseconds. It allows you to add the number of turns. If you close the stopwatch, the value and the number of turns are automatically saved. If the time period is long enough, the number of days that have elapsed is also displayed.

You can configure the display precision to a fraction of a second in the stopwatch settings.

Click the "Start" or "Stop" button to start or stop the stopwatch. Click the "Lap" button to add the lap and the current stopwatch value to the lap list. To reset the number of circles and the stopwatch value, click the "Reset" button (which appears when the stopwatch stops).

You can configure the appearance of the stopwatch (text color, type, and size), and these settings will be saved; they will be used the next time you open a web browser.

You can add online stopwatch links with lists of various time values and laps to your browser's favorites.