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Add multiple time durations or find the difference between two times.
Add or subtract time durations with ease. Calculate the exact difference between two times or add hours, minutes, and seconds to a starting time. Perfect for payroll, logbook tracking, and project timing. Runs entirely in your browser.
Yes. If the end time is earlier than the start time, the tool automatically calculates across the midnight boundary.
Yes. You can leave hours or minutes at zero to perform calculations on smaller units.
This tool is focused on time durations within a 24-hour window. For date differences, use our Date Calculator.