Time Calculator

Add or subtract durations, or add time to a date and clock time.

Results update as you type.

Result

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In days
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In hours
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In minutes
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In seconds
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Working with time

Durations are turned into seconds, added or subtracted, and turned back into days, hours, minutes and seconds (1 day = 24 h, 1 h = 60 min, 1 min = 60 s). Decimal values work too: 1.5 hours is 1 hour 30 minutes.

“Add time to a date” follows the calendar, so adding 8 hours to 10 pm gives 6 am the next day.