Date-time group (DTG): In a
message, a
set of characters, usually in a prescribed
format, used to express the year, the month, the day of the month, the hour of the day, the minute of the hour and the
time zone (if different from Zero zone or UTC+0). The order may vary, for example, 21:52 Feb 20, 2003 (UTC) .
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In a
message, a
set of characters, usually in a prescribed
format, used to express the day of the month, the hour of the day, the minute of the hour, the
time zone, and the year. Note 1: The DTG is usually placed in the
header of the message. Note 2: The DTG may be used as a message
identifier if it is unique for each message. Note 3: The DTG may indicate either the
date and time a message was dispatched by a transmitting station or the date and time it was handed into a
transmission facility by a
user or originator for dispatch.