DTM Date/Time Reference
To specify pertinent dates and times
Code specifying type of date or time, or both date and time.
R0203: At least one of DTM-02 or DTM-03 is required
Time expressed in 24-hour clock time (HHMMSS) (Time range: 000000 through 235959)
Code identifying the time. In accordance with International Standards Organization standard 8601, time can be specified by a + or - and an indication in hours in relation to Universal Time Coordinate (UTC) time. Since + is a restricted character, + and - are substituted by P and M in the codes that follow.
The first two characters in the designation of the year (CCYY).