General form,  values read with MMDDYYw. informat: mmddyy or mmddyyyy where mm is an integer between 01 and 12, representing the month dd is an integer between 01 and 31, representing the day yy or yyyy is the integer representing the year.

In the MMDDYYw. informat, the month, day, and year fields can be separated by blanks or special characters. If delimiters are used, they must be placed between all fields in the values. Remember to specify a field width that includes not only the month, day, and year values, but any delimiters as well. Here are some date expressions you can read using the MMDDYYw. informat:

Date Expression	SAS Date Informat
101599	MMDDYY6.
10/15/99	MMDDYY8.
10 15 99	MMDDYY8.
10-15-1999	MMDDYY10.