Hi!

Try this with the cell formatted as [h]:mm if you want the result to show as
4:00

=B2-A2+(A2B2)

Try this with the cell formatted as GENERAL if you want the result to show
as 4

=(B2-A2+(A2B2))*24

Biff

"Paul T" <Paul wrote in message
...
In excel I want to track line efficiencies based on time. I need to know
how
to subtract 1 time from another. I do not appear to have any trouble with
adding times.

Cell A1 Cell B1 Cell c1
Start Time End Time Hours worked
23:00 03:00 (should be 4 but all I get is
hash
symbols)

Ideally I do not want to ann in date and times. Is there a simple formula
I
have not tried?