calculate month in dateTime

how can i get the month difference between 2 parameters of DateTime type?
also - is it possible to know how many days are in a specific month? if yes, how?
thanks in advaned.

ok i just saw the dataDiff function...
but i still dont know the answer for the second question...

Code:

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Const Feb As Integer = 2
Dim daysInFebLeap As Integer = System.DateTime.DaysInMonth(1996, Feb)

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