Tom,

1 way

=SUMPRODUCT((LEFT(ND!$B1:$B5,2)="BD")*(ND!$EC1:$EC 5=DATE(2009,10,1)*(ND!$EC1:$EC5<DATE(2009,10,31)) ))

Mike

"Tom" wrote:

Hello,

I have some data that I need to count based on two criteria.
The tab name for the data is "nd".
The first two characters of column B shows the market ID. I then need it to
go to column EC and count what dates are in october, november, december and
2010 and beyond.

This is the formula I've been using, but I can't get the date format correct:

=SUMPRODUCT(-(LEFT(nd!$B:$B,2)="BD"),-(nd!$EC:$EC=10/1/2009<10/31/2009))

Can someone tell me how I should be entering in the date?

Thanks,
Tom