need a formula

[jpross]

I have a cell with at Start date, another cell with a stop date and, aformula to calculate the number of days between them - no problem. When there is a date in the start date cell BUT no date (blank) in the stop cell the cell containing the formula returns #NUM!. HOW DO I get the cell t oreturn a zero (0)?

 

[Dave Patton]

On 2002-10-16 14:18, jpross wrote:
I have a cell with at Start date, another cell with a stop date and, aformula to calculate the number of days between them - no problem. When there is a date in the start date cell BUT no date (blank) in the stop cell the cell containing the formula returns #NUM!. HOW DO I get the cell t oreturn a zero (0)?

What formula are you using?

consider

=((B3>0)*(B3-A3))

 

[jpross]

I'm usingthe formula DATEDIF(a1,a2,"D")

 

[Aladin Akyurek]

On 2002-10-16 14:30, jpross wrote:
I'm usingthe formula DATEDIF(a1,a2,"D")

=IF(COUNTBLANK(A1:A2),0,DATEDIF(A1,A2,"D"))

You can substitute A2-A1 for DATEDIF(A1,A2,"D") in the above formula.

 

[jpross]

So, how do I add an if statement to that formula that will cause the answer to be 0 when a2 is blank.

 

[Barry Katcher]

Dave's formula works fine, but I don't understand why yours doesn't. What formula are you using? When I use a simple =A1-B1 (Stop - Start), and I have nothing entered in A1, I get a negative of the number of days from 1/1/1900 to the start date (ex: null minus 6/30/2002 equals -37,437), I do not get an error message.

 

[Barry Katcher]

In answer to how to show zero if no stop date, and assuming A1 is start date, B1 is stop date, and C1 is the number of days between, in C1 use either:

=IF(B1="",0,B1-A1)
or
=IF(B1-A1<0,0,B1-A1)

 

[Aladin Akyurek]

On 2002-10-16 14:38, jpross wrote:
So, how do I add an if statement to that formula that will cause the answer to be 0 when a2 is blank.

That formula will give you a 0, whenever A1 or A2 or both cells are empty.

 

[jpross]

Aladin's formula worked perfectly. Thanks a bunch!!!