Date & Time
Ages, date gaps, working hours and countdowns worked out precisely.
Age
Find your exact age in years, months and days as of any date.
Open calculatorBirthday Countdown
Count down the days, weeks and months until your next birthday.
Open calculatorCountdown
Count down the days, weeks and months to any future event.
Open calculatorDue Date
Estimate the due date from the first day of the last period.
Open calculatorDate Difference
Find the exact number of days, weeks, months and years between two dates.
Open calculatorTime Difference
Find the hours and minutes between two times, on the same or different days.
Open calculatorWorking Hours
Calculate hours worked in a shift, minus any unpaid break.
Open calculatorBusiness Days
Count the working days (Monday to Friday) between two dates.
Open calculatorFuture Date
Add days, weeks or months to a date to find what date you'll land on.
Open calculatorPast Date
Subtract days, weeks or months from a date to find what date it was.
Open calculatorTime Zone Difference
Find the time difference between two fixed UTC offsets.
Open calculatorAdd/Subtract Time
Add or subtract hours and minutes from a date and time.
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The dedicated tools people use most — beyond the standard calculator grid.