Libby,

What number format are you using in the result cell. It should be
formatted as [hh]:mm:ss including the [] characters.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com


"Libby" wrote in message
...
I still can't get it to work

I've got 12/12/2003 09:00 in once cell and 11/12/2003
09:00 in the other
When I take the second away from the first I get 00:00:00
when it should tell me that 24 hrs has elapsed.
:o(