Code specifying type of date.

At least one of G6201 or G6203 must be present.

Date (YYMMDD).

If either G6201 or G6202 is present, then the other is required.

Code specifying the reported time.

Time expressed in 24-hour clock time (HHMM, time range: 0000 though 2359).

If either G6203 or G6204 is present, then the other is required.

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.