Connie,

As Fred pointed out, the ###### is the result of a formula that evaluates as
negative time. You can 'correct' this by using the 1904 date option in
excel, under Tools, Options, Calculations (in Excel 2003). If you tick the
1904 box, you will be able to the view the negative time; however, this will
impact other sheets you may be using, so use caution.

The formula you have laid out would evaluate to -1:00:00 AM, which is
functionally the same as -0:60.

Given Excels limited functionality in negative times, I suggest that you add
something like this in column H:
=IF(G7<0,TEXT(G7*-1,"hh:mm:ss")&" Neg",G7)

This way you can avoid the 1904 date system and have an positive or negative
time value.

This won't address all the issues, but it will be a start.

--
Regards,

PJ
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"Connie Martin" wrote:

Thank you for responding. However, I will say the same thing I said to Niek:
"So, I have to put in an extra column to convert my numbers to Excel time?
I've tried that and then used those columns to calculate by but I'm getting
##################### as the answer." Connie

"David Biddulph" wrote:

Firstly, you don't need the SUM function in =SUM($A$2-B7). If you want
$A$2-B7, use =$A$2-B7. You haven't told Excel anything to which you want
that summing.

Secondly, if you want to convert a number of minutes to an Excel time,
divide by 1440 (or divide by 60 and then by 24, or vice versa).
--
David Biddulph

Connie Martin wrote:
Believe me, I've searched Help, but I'm not finding my answer. In A2
I have a time, formatted as time, which is 8:30 AM. In B7 I have a
time, formatted as time, which is 8:00 AM. G7 is formatted h:mm, and
I have my formula there, which is =SUM($A$2-B7), which is working
properly. It gives me 0:30. Now's the problem. In C7 I have 30
(meaning 30 minutes). In D7, I have 120 (meaning 120 minutes). I
don't know how to format C7 and D7 to minutes. I want to also extend
the formula in G7 to not only calculate the difference in time
between A2 and B7, but to add the minutes in C7 and subtract the
minutes in D7. The formula in G7 should give -0:60.

Can anyone help? Connie