This counts the number of repeated items for March
=SUMPRODUCT(--(MONTH(A1:A20)=3))-SUMPRODUCT((A1:A20<"")/COUNTIF(A1:A20,A1:A20&""))
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HTH
Bob
(there's no email, no snail mail, but somewhere should be gmail in my addy)
"Wael Adel" <Wael
wrote in message
...
i have a cloumn have many dates. i would like to know how many days
repeated
in january, February and March for example