Time Unit Converter
Convert a duration between any two time units. Months and years use conventional averages, because calendar months and years are not a fixed length.
Convert a duration
Frequently Asked Questions
86,400. Sixty seconds in a minute, sixty minutes in an hour, twenty-four hours in a day.
Calendar months are 28 to 31 days, so a month has no fixed length. This uses the conventional average of 30.44 days. To count real days between real dates, use the Date Difference Calculator in our Date and Time section.
365.25 days, the Julian year, which is the standard average for unit conversion because it accounts for leap years.
168.