please I need help with a time sheet

Hi to everyone, I'm a new user and I'm trying to create a timesheet for my self to use for work, I've done the most of it but now i'm stuck at the end. When I have my days off and leave it blank instead of showing me 0 for working hours it show's ######## for the night shift and 18 for the day shift. Can anyone have a look and please tell me why, i want to mention that I don't have to many knowledge of excel in fact i start learning just to create this timesheet table.
Thank you

Enter the following in E10 and pull down as needed

FWIW in the expression =sum(b5-c5) the sum part is redundant - =b5-c5 does the job

Concerning the #######, that is what XL answers when you get negative time or date difference. That is why you have used correctly =IF(B10>C10,C10+1-B10,C10-B10) which accounts for passing midnight.
You can eventually replace this expression by
You might also want to have a look at absolute and relative references. I suspect you entered all the formula manually without pulling down?

TE=Pecoflyer;9725]Enter the following in E10 and pull down as needed

FWIW in the expression =sum(b5-c5) the sum part is redundant - =b5-c5 does the job

Concerning the #######, that is what XL answers when you get negative time or date difference. That is why you have used correctly =IF(B10>C10,C10+1-B10,C10-B10) which accounts for passing midnight.
You can eventually replace this expression by
You might also want to have a look at absolute and relative references. I suspect you entered all the formula manually without pulling down?[/QUOTE]

Thank you I'll try it as soon as I get home in the morning and yes you're right I've done it manually as I said I don't have to many knowledge about xl.

Thank you, thank you very much, you made my day. I've done as you said and all are perfect now.