Date Input Formats
Commands and functions which accept a date as a parameter expect the same field order displayed by the DIR command and functions returning a date without a format code specifier. The year can be entered as a 4-digit or 2-digit value. Two-digit years from 80 to 99 are interpreted as 1980...1999; values from 0 to 79 are interpreted as 2000...2079. Month and day may be entered without a leading zero. Most non-numeric printing characters are accepted as field separators. All three fields must be specified, except for the ISO day format (yyyy-ddd) which requires two fields.