Stopwatch
Start the stopwatch to time anything, record laps along the way, and pause or reset whenever you need.
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How to use
- Click Start to begin timing.
- Click Lap to record a split time without stopping the clock.
- Click Pause to stop, or Reset to clear everything and start over.
What is this tool?
Stopwatch is a precise, easy-to-read timer that counts up in minutes, seconds and hundredths. It supports recording laps while the clock keeps running, so you can track multiple split times in a single session. Everything runs locally in your browser tab.
Common uses
- Timing a classroom activity, presentation or exercise
- Tracking lap times during a workout or race practice
- Timing how long a task or experiment takes
- Keeping time during a game or competition
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FAQ
How accurate is the stopwatch?
It updates continuously and displays time down to the hundredth of a second.
Can I record multiple laps?
Yes, click Lap as many times as you like while the stopwatch is running — each lap time is listed with the most recent at the top.
Does the stopwatch keep running if I switch tabs?
Yes, it keeps timing accurately in the background as long as the browser tab stays open.