>Is there a simple way to manage leap year when doing calculations based on dates? The program I am working on processes records on an annual basis. Sometimes the records are terminated before the end of a full year and sometimes they are increased or decreased before a full year. Because of leap year some years have 364 days and others have 365. Does FoxPro have a built in way to deal with this, or is there an easy way to program for this anomaly?

Instead of doing math with the dates can you use the GOMONTH feature?

IF GOMONTH(startdate, 12) < enddate 
  *-- This is less than a year.
ELSE
  *-- A year or more.
ENDIF