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Add or subtract multiple time values to calculate a total duration.
Multi-Value Time Calculation:
Total = Sum of all (+) entries - Sum of all (-) entries
Each time value is converted to seconds, added or subtracted, then reformatted as HH:MM:SS.
There is no fixed limit. Click 'Add Row' to add more entries. All entries are summed in order.
Use HH:MM:SS format. Hours can be any non-negative integer, minutes 0-59, seconds 0-59.
Yes. Each row has its own operation selector. Set some rows to add and others to subtract as needed.
A leading minus sign is shown (e.g., -00:30:00). This means the total subtracted time exceeds the total added time.
Yes. Video editors use time calculators to sum clip durations, calculate total timeline length, or check how a series of clips fits into a time slot.