FREE · TIME & DATE TOOLS
Stopwatch and Duration Timer.
Measure elapsed time with pause/resume and laps, or run a duration countdown.
00:00:00.000
Elapsed timing uses the browser’s monotonic clock. Keep this page open; no system notifications or sound alerts are enabled.
How to use Stopwatch and Duration Timer
Choose stopwatch or duration timer. Start, pause, resume and reset; record laps while the stopwatch runs.
How it works
Elapsed timing uses a monotonic browser clock. Duration countdown tracks elapsed time rather than subtracting assumed interval ticks. No audio or notification permissions are requested.
Example
A 60-second duration counts down from 00:01:00.
Questions about Stopwatch and Duration Timer
Is Stopwatch and Duration Timer free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Up to 100 laps and seven days per duration. This browser timer is not calibrated timing equipment and cannot alert after the page is closed. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.