Always in the format HHMM[SS][+/-ZZZZ] using a 24 hour clock notation. The seconds designation (SS) is optional. If not present it will be interpreted as 00. The time zone (+/-ZZZZ) is optional. If not otherwise specified it is local time zone of the sender. Midnight is represented as 0000. Examples:

|235959+1130| 1 second before midnight in a time zone eleven and half hours ahead of Universal Coordinated Time (i.e., east of Greenwich).

Primitive Type

This is a primitive data type with no internal structure. It represents a single value.