Julian dates

["Clive" <clivesmail@xxxxxxxxxxx>]

Am using these plus a variable input to test rolling forward 1 year periods
in my data.

The testing is significantly slower than normal, would this be caused by the
Julian date calculations

Code I am using is

Finish_Date   = JulianToDate(DateToJulian(971001+ Increment));

where increment is 365

Thanks

Clive