Thanks you for pointing out the resouces.
However I still have a difficult to calculate the time interval.
This is what I have do
column A column B
column C

1
Date in
Date out
interval

2
Jul-03 (mmm,yy)
Aug-04
=datedif(B2,A2,"m")

3
Jan-04
Sep-04




The result is "#NUM!", how should I format cell C2?
Is there any step I went wrong?

Your help would be much appreciated.

LJ

"JE McGimpsey" wrote in message
...
Alternatively, if you want the "time spent" in other units, check out
the DATEDIF function:

http://cpearson.com/excel/datedif.htm


In article ,
"JulieD" wrote:

assume
Date in is cell B2
Date out is cell C2
formula for D2
=C2-B2
format as number to get the number of days that the tenant stayed.


"LJ" wrote in message
...
I am working in the building and have to calculate the time span each
tenant
stayed . I have "date in" and "date out" and "time spent" columuns.
Does
anyone can give the formula for "time spent" column?

Sorry, I have to send it again, because it does not appear what I posted
originally.

1. In cell B2, I entered Jul-03 (cell is formatted mmm,yy) as Date In
2. In cell C2, I entered Jun-04 (cell is formatted mmm,yy) as Date Out
3. D2 is for "interval time" : I used formula -- datedif (C2,B2,"m")
And the result I got is "#NUM!".

How should I format Cell D2? Which step I went wrong?
Any help would be much appreciated.

LJ

Hi

the formula you use should be
=datedif(b2,c2,"m")

the syntax is
=datedif(startdate, enddate,timeunit)

Cheers
JulieD

"L.J." wrote in message
...
Sorry, I have to send it again, because it does not appear what I posted
originally.

1. In cell B2, I entered Jul-03 (cell is formatted mmm,yy) as Date In
2. In cell C2, I entered Jun-04 (cell is formatted mmm,yy) as Date Out
3. D2 is for "interval time" : I used formula -- datedif (C2,B2,"m")
And the result I got is "#NUM!".

How should I format Cell D2? Which step I went wrong?
Any help would be much appreciated.

LJ

Thanks Julie. One more question year, if the period of spent time is 13
months, is there any syntax can show 1 year 1 month?

Regards,
LJ

Hi LJ

yes you can - Chip Pearson has a good example of how to do this, (using an
Age calculation but it should give you an idea) on his web page about using
datedif at

http://www.cpearson.com/excel/datedif.htm#Age

it's using the concatenation operant of & e.g.
if A1 was John and B1 was Smith
=A1 & " " & B1
would return
John Smith

Regards
Julie Dall

"L.J." wrote in message
...
Thanks Julie. One more question year, if the period of spent time is 13
months, is there any syntax can show 1 year 1 month?

Regards,
LJ