DateTime is a double precision decimal value that represents the combination of a Julian Date and time (i.e. day.time).  The whole number portion of DateTiime is the date portion (i.e. using the year 1900 as a base) and the decimal portion represents the farction of the day that has passed since midnight. The DateTime of 12:00:00pm bar of 11/01/2002 is 37561.50000