SAS Formats and Informats
There are many formats and informats for dates. Look at the OnLine documentation for a complete list. Some common ones are:

Date format	Output form of date	Date informat	Form of date to be read
DATE7.	25DEC99	DATE7.	25DEC99
DATE9.	25DEC1999	DATE9.	25DEC1999
MMDDYY8.	12-25-99 The "-" could be any character.	MMDDYY8.	12/25/99
MMDDYY10.	12-25-1999	MMDDYY10.	12/25/1999
DDMMYY10.	25-12-1999	DDMMYY10.	25-12-1999
YYMMDD10.	1999-12-25	YYMMDD10.	1999-12-25
DAY2.	25	MONYY7.	DEC1999 Stored as 01DEC1999
MONTH2.	12
YEAR4.	1999	YYQ6.	1999Q4 Stored as 01OCT1999
QTR1.	4
WORDDATE20.	December 25, 1999