YY
format Two-digit-year format. This format uses
only two digits to describe the calendar year and thus omits
information about the specific century. For example, 98, 9/98
and 4/4/98 are all two-digit-year dates.
YYYY
format Four-digit-year format. This format uses
four digits to describe the calendar year; and the century is
not assumed or interpreted. For example, 1952, 2001 and 1837
are all four-digit year dates because the specific century is
not ambiguous. |