Hi,

Try this. B12 and B13 hold the 21/4/2009 and 20 May 2009 respectivelyu

=SUMPRODUCT((D5:D9=B12)*(D5:D9<=B13))

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Regards,

Ashish Mathur
Microsoft Excel MVP
www.ashishmathur.com

"Rob" wrote in message
...
I want to count the number of cells that have a date entered, in a period
of
30 days, in a column with over a thousand cells. Some of the cells are
blank
while others have random dates entered spanning a period of many years.

(I.e. How many cells, in the above mentioned column, have a date that
falls
in the period between 21-Apr-2009 until 20-May-2009 ?)