SAS read date values
in one of the following forms:
yy or yyyy
is a two-digit or four-digit
integer that represents the year.
mm
is an integer between
01 and 12 that represents the month of the year.
dd
is an integer between
01 and 31 that represents the day of the month.
You can separate the
year, month, and day values by blanks or by special characters. However,
if delimiters are used, place them between all the values. You can
also place blanks before and after the date. Make sure the width of
the input field allows space for blanks and special characters.
Note: SAS
interprets a two-digit year as belonging to the 100-year span that
is defined by the YEARCUTOFF= system option.