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Time Calculator
Add or subtract two time durations (hours, minutes, seconds), or multiply a duration by a factor. Useful for tracking total work hours, calculating meeting durations, figuring out travel times, or any time arithmetic.
Frequently Asked Questions
How do you add time?+
Add hours, minutes, and seconds separately. If seconds exceed 59, carry 1 minute. If minutes exceed 59, carry 1 hour. Example: 2h 45m + 1h 30m = 4h 15m (45+30=75 min, carry 1h, 15m left).
How do you convert decimal hours to hours and minutes?+
Multiply the decimal part by 60. Example: 2.75 hours = 2 hours + 0.75×60 = 2 hours 45 minutes. Or divide total minutes by 60 to get hours with remainder as minutes.