Sorry - If you're using the WinXL default 1900 date system, that
indicates that the result is negative, and that date system can't
display negative times.

Instead, use

=MOD(A1-TIME(5,0,0),1)



In article ,
"Erika" wrote:

I tried the first example you gave =A1-TIME(5,0,0) - however my result is
########## that no matter how wide I make the column it keeps doing that. I
got the same result with your second suggestion. Do I need to select a
different time format?