zulu-timehttp://www.oed.com/dictionary/zulu-time_n%3Ftab%3Dmeaning_and_useZulu time, n.
Revised 2023

Zulu timenoun

  1. 1959–
    (An informal name for) Greenwich Mean Time, and (subsequently) Universal Time; cf. Zulu n. A.5b.
    1. 1959
      So if he has to use Zulu time, then let him follow it up with the time also in local zonal time.
      Flying Safety March 1/1
    2. 1981
      Projected detonation deadline at fourteen-hundred hours, Zulu Time.
      T. Barling, Bikini Red North xii. 260
    3. 2022
      Stay on schedule with a UTC hand on the watch face, which can also display and help pilots manage multiple time zones, including Zulu time.
      Impact Financial News (Nexis) 9 February

Originally published as part of the entry for Zulu, n. & adj.

Zulu, n. & adj. was revised in March 2023.