The method always returns the correct day, however, the logic for determining the month seems incorrect.

For example, if i use year 2999, it returns 24th, but since total > 31 (58) the month becomes April, but in fact Easter is in March for 2999.

I think I do remember a caveat on the algorithm about the range of dates over which it is accurate. However, I'm in FL right now and don't have my materials with me. However, if the 2012 thingie is correct, you won't need to worry about it!

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Jack Purdum, Ph.D.
Author: Beginning C# 3.0: Introduction to Object Oriented Programming (and 14 other programming texts)