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Stopwatch
Track time to the millisecond, record lap splits, and compare your fastest and slowest laps
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Key Points
Measures elapsed time to the millisecond with start, stop, reset, and lap recording, with all split times listed below the main display
Lap times stay visible throughout the session so splits can be compared without stopping the main timer
Runs in any modern browser with no download or account required
How to Use the Stopwatch
- Start the Stopwatch
- Click the Start button to begin timing. The stopwatch will display hours, minutes, seconds, and milliseconds.
- Pause or Resume
- While running, the Start button turns into Pause. Click it to pause. Click Resume to continue.
- Reset the Stopwatch
- After pausing, you can click Reset to clear the time and start over.
- Record Lap Times
- While the stopwatch is running, click Lap to record a lap. Each lap captures both the split time and total elapsed time.
- View and Compare Laps
- Lap times appear below the stopwatch.
- The fastest lap is highlighted in green.
- The slowest lap is highlighted in red.
- Clear Laps
- Click the Clear button in the Lap Times section to remove all recorded laps.
- Add a Title (Optional)
- Use the input field under “Custom Title” to give your stopwatch a name. This title will display above the timer when it starts.
Use Cases
Suited to athletes timing training runs or swim intervals, coaches recording lap splits, and students timing lab experiments or drills. Useful whenever measuring elapsed time matters more than counting down to a fixed end point.
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Have a question?
Find quick answers to common questions about Tezons and our services.
Press Start to begin timing. The display counts upward in hours, minutes, seconds, and milliseconds. Press Stop to pause, Reset to return to zero, and Lap to record split times while the main timer continues running.
Press the Lap button while the stopwatch is running to record a split time without stopping the main timer. Each lap appears in a list below the display so splits can be reviewed during or after the session.
Browser built-in timing functions are used and accuracy is typically within a few milliseconds for normal use. Results may vary slightly depending on device load and browser.
Lap times are visible for the duration of the browser session but are not saved permanently. Closing or refreshing the page clears all recorded splits and resets the timer.
A stopwatch counts upward from zero to measure how long something takes, useful when the total duration is not fixed in advance. A countdown timer counts down from a set point and alerts you when time runs out. Tezons has a separate Countdown Timer for that.
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