Stopwatch
time
1. How to Use
- Click the green play button to start the stopwatch. Elapsed time updates every 10ms for millisecond precision.
- Click the Lap button while running to record a split time. Each lap shows its duration and total elapsed time.
- Click the Reset button (when stopped) to clear the time and lap list.
- Export lap times to Word or Text for records, analysis, or sharing.
2. How It Works
The stopwatch uses Date.now() and setInterval(10ms) for high-precision timing. Elapsed = now - startTime.
Lap times are recorded by storing the current timestamp; each lap's duration = currentTime - previousLapTime.
Export creates a blob and triggers a download. Data is formatted as plain text with lap numbers and times.
3. About Stopwatch
Free online stopwatch with lap recording and export. Ideal for sports, fitness, study sessions, and any activity requiring precise time measurement.
4. Advantages
- Millisecond precision: Accurate to 10ms.
- Unlimited laps: Record as many splits as needed.
- Export: Save lap data to Word or text files.
- No signup: Use immediately in any browser.
5. Real-World Use Cases
- Sports training: Track interval times and rest periods.
- Workouts: Time exercise sets and circuit stations.
- Study sessions: Monitor focus time and breaks.
- Cooking: Time recipe steps and processes.