numerically or literally. All these strings specify the same calendar date:
@example
-1970-09-17 # ISO 8601.
-70-9-17 # Assume 19xx for 69 through 99, 20xx for 00 through 68.
-70-09-17 # Leading zeros are ignored.
-9/17/72 # Common U.S. writing.
+1970-09-17 # ISO 8601.
+70-9-17 # Assume 19xx for 69 through 99, 20xx for 00 through 68.
+70-09-17 # Leading zeros are ignored.
+9/17/72 # Common U.S. writing.
24 September 1972
-24 Sept 72 # September has a special abbreviation.
-24 Sep 72 # Three-letter abbreviations always allowed.
+24 Sept 72 # September has a special abbreviation.
+24 Sep 72 # Three-letter abbreviations always allowed.
Sep 24, 1972
24-sep-72
24sep72