Stopwatch

What the Stopwatch does

The Stopwatch is a simple, accurate timer with lap tracking, letting you time an activity precisely and record split times along the way.

How to use it

1. Click Start to begin timing.
2. Click Lap to record a split time without stopping the clock.
3. Click Reset to clear and start over.

Common uses

• Timing a workout, run, or interval training session.
• Tracking lap times during practice for a race or competition.
• Timing how long a task or process actually takes for productivity tracking.
• Timing a presentation or speech rehearsal to stay within a limit.
• Timing cooking steps that need precise duration tracking.

Good to know

Lap times are recorded as split intervals from the point each lap button is pressed, letting you review individual segment times afterward rather than just the final total — useful for spotting which portion of an activity took longest.

Browser-based timers rely on your device's system clock and JavaScript's timing functions, which are generally accurate to within a few milliseconds for typical use — more than sufficient for workouts, cooking, or general timing, though dedicated sports timing for competitive events typically requires purpose-built hardware timers with certified accuracy.