Free Timerlyn - Measure Time with Precision

Timerlyn

Measure time with hundredths of a second precision

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How to Use the Timerlyn

Our online stopwatch is a free and accurate tool for measuring time intervals. With an intuitive interface and large display, it is perfect for various everyday situations.

Click "Start" to begin timing. Use the "Lap" button to record split times without stopping the stopwatch — ideal for workouts with sets or races with laps. The "Stop" button stops the count and "Reset" clears everything.

What to Use a Stopwatch For

The online stopwatch is useful for physical activities (running, swimming, gym), cooking (cooking times), studying (reading time), gaming (speedruns and challenges), work (task time tracking) and any situation requiring accurate time measurement.

The fullscreen function allows you to view the stopwatch from a distance, ideal for presentations, classes or group workouts. The display shows minutes, seconds and hundredths of a second in a large, readable format.

Frequently Asked Questions

The stopwatch uses the browser's performance.now() function, which offers millisecond precision. The display shows hundredths of a second (10ms resolution), suitable for most everyday uses.
While the stopwatch is running, click the "Lap" button to record the split time. Each lap shows the split time (since the last lap) and the cumulative total time.
Yes, the stopwatch continues counting time even if you switch tabs or minimize the browser. When you return, the display will be updated with the correct time.
Yes! Click the fullscreen button in the controls to expand the stopwatch display to fill the screen. Press Esc or click again to exit.