Find the time between two times, add or subtract durations, or total a whole list — with clean h:mm and decimal-hour results. Everything runs entirely in your browser; nothing is sent anywhere.
Time between two times
Duration
—
Decimal hours
—
Total minutes
—
Add or subtract durations
—
Enter two durations in hh:mm:ss (minutes and seconds optional).
Sum a list of durations
Total
—
Decimal hours
—
Lines counted
—
Blank lines are ignored. A single number is read as minutes; use hh:mm or hh:mm:ss for hours.