ClockHub

Stopwatch

Precision online stopwatch. Use lap record to measure split times.

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Tool guide

Stopwatch

Online stopwatch

Precision online stopwatch. Use lap record to measure split times.

Track elapsed time with lap records

Use the stopwatch for workouts, study sessions, cooking, classroom activities, or short work blocks where split times matter.

  • Start, pause, reset, and record laps directly in the browser
  • Use lap records for intervals, drills, experiments, or presentation timing
  • Switch to Countdown Timer when you already know the target duration