Greetings,

I need to write a formula that is 6 months past any given date. I am not
sure what the correct terminology is but in terms of being 6 months out, it
needs to be 6 calendar months. Here is my current formula:

=DATE(YEAR(A1), MONTH(A1)+6, DAY(A1))

When the day part of the date is 29, 30 or 31 _and_ 6 months from that date
doesn't contain a day that is 29, 30 or 31 my formula rolls over to the
following month. For example if my date in A1 is 8/29/2008 the result of my
formula is 3/1/2009. What I really want is 2/28/2008, which is the last day
of the 6th month from 3/1.

What is the best way to special case dates where the day value is 29, 30 or
31.