The date values must
be in one of the following forms:
is a two-digit or four-digit
integer that represents the year.
is an integer from
01–365 that represents the day of the year.
Julian dates consist
of strings of contiguous numbers, which means that zeros must pad
any space between the year and the day values.
Julian dates that contain
year values before 1582 are invalid for the conversion to Gregorian
dates.
Note: SAS
interprets a two-digit year as belonging to the 100-year span that
is defined by the YEARCUTOFF= system option.