You could also use

=SUMIF(I2:I20,"="&E1,J2:J20)-SUMIF(I2:I20,""&E2,J2:J20)

which sums all amount greater than one date and subtracts all amounts . than
the later date.

--
HTH

Bob Phillips

(replace somewhere in email address with gmail if mailing direct)

"litngldy" wrote in message
...
I have a spread sheet with columns
D= Weekstart (1/1/2006), E=weekend1/7/2006, These are to test a range
for
each week and then I=workday 1/3/2006, J=hours (4)

I want to sum all the hours by week into F . All the column data is set
up
for the year, but I can't see how to make the formula and test a range of
dates. Do I use sumif or sumproduct?