Is there a file size limit?

No practical limit for most operations.

Results are generated using standard algorithms for maximum accuracy.

best

Stopwatch — best

Online stopwatch with lap time tracking.

00:00.00

Type, paste, or upload your content.

Result appears instantly in your browser.

Copy the result or download your file.

Set a countdown timer for any duration.

Calculate the difference between two dates.

Count days until any future date or event.