[pilot-db-list] Question on calculating time

[Thane S. <ts...@au...>]

I want to calculated the number of hours in decimal between a start and end 
time.  I have this:
(dur (- (int %4) (int %3))) and that gives me the time in time format, but 
I want to be view it like this:
1:00 would come out as 1.0, 1:30 would come out as 1.5, etc.  How can I do 
this?

T