Stopwatch with Lap Time Separation Option

Accurate 3D Online Stopwatch and Lap Timer

This responsive 3D online stopwatch combines precise elapsed-time tracking with a clear lap history. Start, pause and resume the clock without losing your progress, then record as many lap times as you need during a workout, study session, race or practice routine.

The dimensional stopwatch interface provides clear controls and a high-contrast digital display. It works directly in a modern browser on computers, tablets and phones, with no account, download or installation required.

How to Use the Stopwatch

1. Select Start to begin timing. The same button becomes Stop while the stopwatch is running.
2. Select Lap whenever you want to record a split without pausing the main clock.
3. Select Stop to pause, then Start to resume from the saved elapsed time.
4. Select Reset to clear the stopwatch and its complete lap history.

Lap Separation and Countdown Timer Mode

Every recorded lap appears in a dedicated list with its total elapsed time and separation from the previous lap. When multiple laps are available, the fastest is highlighted in gold and the slowest in red for quick comparison.

Select Mode to switch from the stopwatch to the built-in countdown timer. In timer mode, the Lap control cycles through useful preset durations, and an audible alarm signals when the countdown reaches zero.

Keyboard shortcuts are also available while the tool is focused: Space starts or stops, L records a lap, R resets and M changes mode.