Time Duration Calculator
Add or subtract hours, minutes, and seconds to calculate total duration.. Gratuit, sans inscription, fonctionne dans votre navigateur.
À propos de Time Duration Calculator
This free time duration calculator adds or subtracts multiple time values in hours, minutes, and seconds. Enter durations line by line to get a cumulative total. Useful for tracking project time, exercise sessions, video editing, cooking times, and travel planning.
Questions fréquentes
How do I add multiple durations?
Enter each duration as hours:minutes:seconds (e.g., 1:30:00 for 1 hour 30 minutes). The calculator sums all entries.
Can I subtract time?
Yes. Prefix a duration with a minus sign (-1:30:00) to subtract it from the total.
What formats are supported?
Enter time as HH:MM:SS, HH:MM, or just minutes. The calculator auto-formats and converts between units.
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