VBScript DateDiff month

Question

I am having a problem about getting the month datedifference between two dates. Here is a sample:

DateDiff(\"m\",\"2014-10-17\",\"2014-10-30\")

Answer 1

DateDiff calculates the span between two timestamps with the precision defined in the first parameter. From what you described in your question and comments you rather seem to be looking for something like this:

ds1 = "2014-10-17"
ds2 = "2014-10-30"

d1 = CDate(ds1)
d2 = CDate(ds2)

diff = DateDiff("m", d1, d2)
If diff > 0 And Day(d2) < Day(d1) Then diff = diff - 1

WScript.Echo diff & " full months have passed between " & ds1 & " and " & ds2 & "."