Negative hours message problem in Excel 2003

[Damien25]

Hello, I have strange problem with MS excel 2003, During the subtraction of hours, I sometimes have negative results. How to make them display in a cell arise "######".
example:
I have in A1 format 08:21 hours
I have to B1 format 08:04 hours

C1 I have the formula B1-A1, and the result is negative it is displayed in the cell "#####" (hours negatives are displayed in the form of ####).

How to solve this problem. it's 3 days I am trying without results

Thank you for your help.

[Sam.D]

Hi, I understand the question.

Should you give more details on what you want to get.

otherwise I have solution which you can try, you have to write

= if (B1 <A1, A1-B1, A1-B1) And you'll get is a difference but without evidence. C1: I add a column with the following formula in C1:

= if (B1 <A1; "x ";"") D1: Then in in your column you do the multiplication formula in D1:

= if (C1 ="*"; B1 *- cell Y;
We must see what you are looking for.

[Damien25]

Hello,
My concern is more important to the extent the total obtained must be reused. Here's how it happens.
in the table below, when I type the formula:
subtotal 1 total + = balance subtotal 1 credit - 1 subtotal debit
Excel does not I see the result and have replaced with ######. when I want to continue and repeat the same operation for the total.
subtotal 2 in total total = 1 total + subtotal 2 credit - subtotal excel 2 speed.

Someone can help me. thank you

[Macarenas]

Excel can not display negative hours format, time or date. Look in the help Time format problems and you will find this
"If the formula is correct, although the result is negative, you can display the value obtained by setting the cell shape with a pattern that is neither a date nor time. On the Format menu, click Cells, then click the Number tab and select a format other than a date format or time. "
therefore you can not get your display without tinkering with.