- time group
- Four digits representing the hour and minutes from the Coordinated Universal Time (UTC) clock. The FAA (Federal Aviation Authority) uses the UTC for all operations. The term Zulu may be used to denote the UTC. The word local, or the time zone equivalent, is used to denote “local” when local time is given during radio and telephone communications. When written, a time zone designator is used to indicate local time [e.g., 0205M (Mountain)]. The local time may be based on the 24-h clock system. The day begins at 0000 and ends at 2359.
Aviation dictionary. 2014.