Date & time
Date difference
Count calendar days and weeks between two dates.
Date & time calculators
8 calculators
Date & time
Age
Calculate exact calendar age plus total months, weeks, days, the next birthday, and birth weekday.
Date & time
Work hours
Calculate paid hours for a shift, including overnight shifts.
Date & time
Date calculator
Add or subtract days, weeks, months, and years from a chosen calendar date.
Date & time
Business days
Count business days between dates, or add or subtract working days with configurable weekends and optional holidays.
Date & time
Time-zone offset
Convert an hour using a signed offset between two time zones.
Date & time
Time duration
Calculate elapsed time between two times on the same or next day.
Date & time
Day of the week
Find the weekday for a Gregorian calendar date.
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