Date Calculator
Add or subtract days, months, and years from any date or find the difference between dates.
About Date Calculator
This date calculator can add or subtract time from a given date or calculate the difference between two dates. It's useful for planning events, calculating ages, determining deadlines, or finding out how much time has passed.
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For a related calculation, use Time Calculator to add, subtract, or find the difference between times in hours, minutes, and seconds. Alternatively, use Age Calculator to calculate your exact age in years, months, and days from your birth date.
For the underlying method, read How Age Calculation Works: Chronological Age, Leap Years, and Cultural Differences or Date Math Explained: Counting Days, Adding Time, and Finding Weekdays.