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Online Stopwatch

Professional stopwatch with lap timing, precision tracking, and beautiful visual feedback for all your timing needs.

00:00:00.000
Ready to start

Stopwatch Controls

Lap Times

Statistics

0
Total Laps
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Fastest Lap
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Slowest Lap

How to Use the Online Stopwatch

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Basic Operations

  1. Start: Click the "Start" button to begin timing
  2. Lap Time: Press "Lap" button to record split times without stopping
  3. Pause: Click "Pause" to temporarily stop the stopwatch
  4. Resume: Click "Start" again to continue from where you paused
  5. Reset: Click "Reset" to clear all times and start over
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Advanced Features

  • Precision Timing: Accurate to milliseconds (0.001 seconds)
  • Unlimited Laps: Record as many lap times as needed
  • Live Statistics: See fastest, slowest, and average lap times
  • CSV Export: Export all lap times for analysis
  • Visual Progress: Circular progress indicator shows time
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Sports & Training

  • Running: Track lap times for track and field training
  • Swimming: Time swimming laps and analyze performance
  • Cycling: Monitor cycling intervals and split times
  • Workouts: Time exercise intervals and rest periods
  • Sports Events: Time races, competitions, and games
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Professional Use

  • Research: Time experiments and data collection
  • Manufacturing: Monitor production line timings
  • Education: Time tests, presentations, and activities
  • Healthcare: Monitor patient response times
  • Event Management: Time speeches, performances, presentations

💡 Pro Tips

Keyboard Shortcuts: Use spacebar to start/stop and 'L' key for lap times (when available)

Data Analysis: Export CSV data to spreadsheet software for detailed analysis

Multiple Sessions: Reset between different timing sessions for accurate results

Precision Matters: Keep browser tab active for most accurate millisecond timing