Military Time
Military Time
https://military.onlineclock.net/chart/
9:00 a.m. 0900 or 0900 hours "Zero nine hundred hours" 5:00 p.m. 1700 or 1700 hours "Seventeen hundred hours"
12:00 a.m. is usually referred to as both 0000 and 2400 hours. Clocks which can display Military Time, however, always display this time of day as 0000 (and not as 2400).
Zulu Time
Another name for UTC or GMT time.
In the Military Phonetic Alphabet "Z" is Zulu. The 24 time zones are labeled A through Z. The 24th time zone is +0, and is therefore called Zulu Time.
Military Time Zones Chart [1]
Z Zulu UTC+00:00 Greenwich, England
With military operations conducted across the globe, the military clarifies time further by appending the time zone with a letter of the NATO phonetic alphabet.
The way this works is the military divided the world into 24 time zones and assigned a letter of the phonetic alphabet to each time zone. The military uses Coordinated Universal Time or Universal Time Coordinated (UTC) and refers to UTC+00:00 as Zulu (Z).
For example, calling the time in Greenwich, England (UTC+00:00), would look similar to 1500Z and be spoken as “fifteen hundred Zulu.” [2]