Chronometer

00:00.00

How to use this chronometer

  1. Click "Start" to begin timing.
  2. Click "Lap" to record split times without stopping.
  3. Click "Reset" to clear everything and start over.

How precise is this stopwatch?

It uses your browser's high-precision animation frame timing, accurate to within a few milliseconds — precise enough for workouts, cooking, presentations, or any everyday timing need.

Does the timer keep running if I switch tabs?

Yes, the underlying clock keeps counting even if the tab is in the background, though the display may pause updating until you return to the tab.

Is there a limit to how many laps I can record?

No practical limit — laps are stored in memory and listed newest first, for as long as your browser tab stays open.