YearCalc

Years are sometimes defined, in a contract for instance, as 365 days or 366 days or 365.25 days or some other arbitrary number. This tool lets you define the length of a year and add (or subtract, if negative) that number of years to a date.

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.

Click here to calculate the resulting end day.