ComboDate

This tool combines all the arbitrary length features of the other pages into one page. It let's you set the length of a month and a year and lets you add or subtract any number of months and years.

Input the length, in days, of a month.

Input the length, in days, of a year.

Input the full start date, with 4-digit year.

You entered:

Enter the number of years, negative if subtracting.

Enter the number of months, negative if subtracting.

Click here to calculate the resulting end day.