If you changed it to this:

=IF(D3=””,””,CEILING(D3-C3,1/24/60))

this will round your result up to the nearest minute, so this should
correct for -0:00.

Hope this helps.

Pete

On Dec 18, 12:26*am, Dale G wrote:
My spread sheet is used to track arrival times at a specific location. The
location has a scheduled arrival time in column C, in column D I enter the
actual arrival time when a vehicle arrives, and column E calculates the
difference.
I use the 1904 time system so I’ll be able to calculate and show negative
time. Column E is set with =IF(D3=””,””,D3-C3) this will have column E appear
blank until the actual time is entered.
Without =IF(D3=””,””,D3-C3)in column E and with =D3-C3 this will show the
negative of the scheduled time i.e. *-4:59 or -18:44. The schedule time is
always present in column C.
The trouble I’m having now is; often a vehicle will arrive right on time
which will calculate like 0:00.
This is good, but after a few on time calculations some of the time it will
appear like this -0:00, and that is not good.
Would anyone know of a way to prevent the negative sign from appearing when
the arrival time is on time? *
Any help is appreciated.