I have a worksheet with columns that represent the dates that I get paid. I
get paid on the 15th and 30th of each month, unless, it is Feb, then the last
day of the month (28th or 29th).

I want to be able to have the date calculated automatically. I can figure
the calculation for the 30th (previous date + 15), but I don't know if there
is an easy way to calculate the 15th since the number of days in a month vary.

Any help greatly appreciated!!

Les