📅Date Calculator

Calculate the number of days, weeks and months between two dates, or add and subtract days, weeks, months and years from a date.

Start date

End date

Choose a mode, enter dates and press Calculate.

About the Date Calculator

Use Days Between to find the exact duration between two dates — in years, months and days, plus totals and the number of weekdays. Use Add / Subtract to shift a date forward or backward by a number of days, weeks, months or years.