The 1 at the end of this statement says to compare datte against the 1st of
the month. MONTH($G5),1

change the 1 to a 15 to compare with the 15th of the month.

"AlanStotty" wrote:

Hi,

I am using this formula to calculate if go-live is in a paricular
month.

=IF(AND(S$4=DATE(YEAR($G5),MONTH($G5),1),S
$4<=DATE(YEAR($G5),MONTH($G5)+1,0)),"go-live","")

What I would like to do now is split the month in half. I want to work
out which half of the month the go-live is in.

e.g. So the first cell will be 01/03/07 to 15/03/07 and the second
cell will be 16/03/07 to 31/03/07. The same for each of the other
months.

Thanks in advance for your help.