zulu time

noun

Coordinated Universal Time.

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Meanings

zulu time1

nounzulu time (uncountable)
  1. uncountableAlternative letter-case form of Zulu time.

ZULU time2

nounZULU time (uncountable)
  1. uncountableAlternative letter-case form of Zulu time.

Zulu time3

nounZulu time (uncountable)

alternative ZULU time · alternative zulu time

  1. uncountableCoordinated Universal Time.

    Aviation has long used Zulu time as the standard so that no matter which time zone you're in, you know what time it is.

    2008, Carol Pollard, Reynaldo Anzaldua, Computer Forensics For Dummies, John Wiley & Sons, →ISBN, page 208
    2 more examples

    What everyone knows is that between zero three fifteen and twelve seconds and thirteen seconds Zulu time, on October second, ’sixty-two, all the clocks stopped, the satellites went away, the star map changed, nineteen airliners and forty-six ships in transit ended up in terminal trouble, and they found themselves transferred from a globe in the Milky Way galaxy to a disk which we figure is somewhere in the Lesser Magellanic Cloud.

    2009, Charles Stross, Wireless, Penguin, →ISBN

    The aviation standard is Zulu time, which is essentially the same as Greenwich mean time (GMT) and Universal Time Coordinated (UTC).

    2012, Jeff Van West, Kevin Lane-Cummings, Microsoft Flight Simulator X For Pilots: Real World Training, John Wiley & Sons, →ISBN, page 101

    Synonyms: Z time

Synonyms & antonyms

nounCoordinated Universal Time.

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Origin

From the name for the letter Z in the ICAO spelling alphabet, a reference to the equivalent nautical time zone (GMT), which has been denoted by a Z since about 1950. See the list of military time zones.

Full word history & related roots →
Cite this entry
APA

zulu time. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/zulu%20time

MLA

“zulu time.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/zulu%20time. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “zulu time,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/zulu%20time.

Source: zulu time on Wiktionary, CC BY-SA 4.0.