Hi Bob

This didn't exactly do what I needed but I looked at your website and
was able to work it out with a SUMPRODUCT formula.

Thanks again

"Bob Phillips" wrote:

=SUMIF(A:A,"="&A2,C:C)-SUMIF(A:A,"="&A2+1,C:C)

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HTH

Bob

"jclaibor" wrote in message
...
Hi everyone

I have a dataset containing purchase data.
A B C
Date/Time Card# Amount
1 1/3/08 12:00 x1xxx 15.00
2 1/3/08 12:21 x1xxx 25.00
3 1/3/08 12:55 xxxx3 55.00

I need to calculate the count and Amount sum for each card based on a
rolling 24 hours before and after the time of purchase. For instance if a
card was use on 1/3/08 12:00 AM I need to know how many times the card was
used between 1/2/08 12:00 AM and 1/4/08 12:00 AM and the total amount
purchased. If detail to the minute is overkill then I need at least to
the
hour.

Thanks for any help