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Time & Date

Stopwatch

Track elapsed time to the millisecond, record laps, and export or copy the results when you're done.

Runs in your browser No signup Free forever
00:00.000

Lap times

Lap Split time Lap time
No laps recorded yet.

Export

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How it works

Three steps, no account

1

Start

The display updates every 10 milliseconds while running.

2

Lap

Records the current split and the time since the previous lap — available once the stopwatch is running.

3

Export

Once you have at least one lap, download the table as a CSV or copy it as tab-separated text.

FAQ

Common questions

How precise is this?
The display updates every 10ms and shows milliseconds, limited by your browser's timer precision — accurate enough for casual timing, not a substitute for dedicated race-timing hardware.
What's the difference between "Split time" and "Lap time"?
Split time is the total elapsed time when you pressed Lap. Lap time is just that lap's own duration — the time since the previous lap.
Does resetting or leaving the page save anything?
No — laps only exist in memory for the current page load. Export or copy them before resetting or navigating away if you want to keep them.
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Online Stopwatch

Our Online Stopwatch provides precise time tracking with lap timing capabilities and data export features, all in your browser.

How to Use the Stopwatch

1. Basic Controls

  • Start/Stop timing
  • Record lap times
  • Reset stopwatch
  • Export results

2. Available Features

Time Display

  • Hours and minutes
  • Seconds display
  • Millisecond precision
  • Clear readout

Lap Functions

  • Split times
  • Lap intervals
  • Time tracking
  • Results table

Key Features

Timing Options

  1. Basic Functions

    • Start/Stop
    • Lap recording
    • Reset function
    • Precise timing
  2. Lap Management

    • Split times
    • Lap intervals
    • Time tracking
    • Results display
  3. Export Features

    • CSV export
    • Copy to clipboard
    • Data formatting
    • Time stamps

Use Cases

1. Sports Training

  • Interval timing
  • Lap recording
  • Performance tracking
  • Split analysis

2. Time Studies

  • Process timing
  • Task duration
  • Interval measurement
  • Performance analysis

3. General Timing

  • Event timing
  • Duration tracking
  • Time recording
  • Interval measurement

Technical Features

  • Precision Timing: Millisecond accuracy
  • Lap Recording: Detailed splits
  • Data Export: Multiple formats
  • Visual Display: Clear readout

Why Use Our Stopwatch

1. Comprehensive Features

  • Precise timing
  • Lap recording
  • Data export
  • Clear display

2. User-Friendly Design

  • Simple interface
  • Easy controls
  • Clear results
  • Quick access

3. Technical Benefits

  • Browser-based
  • No installation
  • Data persistence
  • Export options

Understanding Time Tracking

Key Concepts

  1. Time Measurement

    • Split times
    • Lap intervals
    • Total duration
    • Time precision
  2. Data Recording

    • Lap storage
    • Split calculation
    • Result formatting
    • Data export
  3. Analysis Features

    • Time comparison
    • Interval analysis
    • Performance tracking
    • Result review

Best Practices

  1. Time Recording

    • Clear starting
    • Accurate lapping
    • Regular splits
    • Proper stopping
  2. Data Management

    • Regular export
    • Result backup
    • Data organization
    • Record keeping

Additional Considerations

1. Timing Accuracy

  • Precision timing
  • Split accuracy
  • Interval measurement
  • Result reliability

2. Data Export

  • CSV format
  • Clipboard copy
  • Data backup
  • Result sharing

3. Practical Uses

  • Sports timing
  • Process analysis
  • Event timing
  • Performance tracking

Tips for Users

  1. Before Timing

    • Clear previous data
    • Check display
    • Plan intervals
    • Prepare recording
  2. During Timing

    • Regular laps
    • Clear splits
    • Monitor display
    • Track progress
  3. After Session

    • Export data
    • Save results
    • Review times
    • Analyze splits