The DATE
w.
format writes SAS date values in the form
ddmmmyy,
ddmmmyyyy,
or
dd-mmm-yyyy where
dd
is an integer that
represents the day of the month.
mmm
is the first three
letters of the month name.
yy or yyyy
is a two-digit or four-digit
integer that represents the year.
Note: SAS calculates date values
based on the number of days since January 1, 1960.