Online Stopwatch
Measure elapsed time with start, pause, resume, reset and lap controls.
StopwatchLapElapsed time
Stopwatch
Start, pause and take laps. Timing is measured from the clock, so it stays accurate in a background tab.
00:00.00
min : sec . hundredthsReady
Stopwatch is readyFrequently Asked Questions
It reads to hundredths of a second and is measured from the system clock, so the displayed time does not drift even if the browser throttles the page.
A lap marks the time at a moment without stopping the clock. Each row shows the split (the time since the previous lap) and the total time, newest lap first.
Pause freezes the time so you can resume from exactly there. Reset stops it and clears the time and every lap.