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Date & Time Tools

Calendar arithmetic done properly. Add days, weeks, months and years to a date; measure the time between two dates in every unit; count business days with your own weekend and holidays; total working hours with breaks; add up durations; and convert between hours, minutes, seconds, days and weeks. Leap years and month lengths are handled by calendar rules, not approximations.

Date Calculator Find the date a given number of days, weeks, months or years before or after any… Date Difference Calculator How long is it between two dates? Choose a start and an end date and get the… Business Days Calculator Deadlines, delivery times and notice periods are often counted in business days.… Working Hours Calculator Turn a week of start and finish times into total hours. Enter when each day… Time Duration Calculator How long did it take, and what time will it be? Enter a start and an end time to… Hours to Minutes Converter Convert hours to minutes, or switch direction to convert minutes to hours. Type… Minutes to Seconds Converter Convert minutes to seconds, or switch direction for seconds to minutes. Type… Days to Hours Converter Convert days to hours, or switch direction to turn a number of hours into days.… Weeks to Days Converter Convert weeks to days, or switch to convert a number of days into weeks. Type… Months to Days Calculator Months have 28 to 31 days, so “how many days is six months?” has more than one…

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