The syntax for the date literal in BNF is as follows:

Syntax

date-literal ::=
{ d'yyyy-mm-dd'}
  |mm-dd-yyyy| mm/dd/yyyy| mm-dd-yy| mm/dd/yy| yyyy-mm-dd
  | yyyy/mm/dd| dd-mon-yyyy| dd/mon/yyyy| dd-mon-yy| dd/mon/yy

For more information, see Date literals.