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Time Duration Calculator.
Sum or subtract custom hour, minute, and second intervals.
Input Parameters
Computed Results
Primary Metric
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Comments & Feedback.
Frequently asked questions.
How do I add time durations together?
Add the minutes first — if the total exceeds 60, carry over the extra hours. Then add the hours together. For example, 2h 45m + 1h 30m = 4h 15m.
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