Is Time Duration Formatter free?

Yes, Time Duration Formatter is completely free to use with no signup required.

Does Time Duration Formatter send my data to a server?

No. Time Duration Formatter runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

Translate time duration intervals. Convert seconds to human-readable strings (e.g. 2h 3m) bidirectionally.

DevTab

Never leaves your browser

Convert time intervals bidirectionally between raw seconds and human duration strings client-side.

Enter Raw Seconds

Formatted Duration Output

Duration Parsed SuccessfullyMode: SECONDS-TO-HUMAN