Specify the Number of Months in a Year

With 52-week years, you must define how months add to a year.

  To select the number of months in a year:

  1. Select an option:

    • 12 Months — Use 13 weeks per quarter. Months have an unequal number of weeks.

    • 13 Months — Use a 13–month year in which months contain the same number of weeks, and you specify the quarters that contain extra months.

  2. Perform a task: