Date Format

Most dates are represented by a composite field that contains the century, year, month and day. Assume the following format is being used, unless an element explicitly states a different format is used.

From left to right, the date is composed of four numeric digits to represent the century and year, a hyphen, two digits to represent the number of the month, a hyphen, and two digits to represent the number of the day (4/N, "-" 2/N, "-" 2/N). Numbers are always right-justified. Use leading zeros when necessary.

Example: The fourth of March in 2001 is held as "2001-03-04".