>.... a Julian Day Number is a count of days that have elapsed since Greenwich mean time at noon on 1 January 4713 B.C. The Julian Date is the Julian day number followed by the fraction of the day elapsed since the preceding noon. The julian date for today after 12:00 noon would be 2452667, not 2003027. Did I miss something?

Hi Tracy,

The first time I heard of "Julian day" was to describe the Nth day of the year - February 1 is day number 32. The terminology may be mis-applied, but defining days in that way makes working with dates easy.