how get many days in March repeate in column have many dates

W

Wael Adel

i have a cloumn have many dates. i would like to know how many days repeated
in january, February and March for example
 
B

Bob Phillips

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)
 
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