Unix time

noun

A widely used date and time representation that measures time by the number of nonleap seconds that have elapsed since 00:00:00 UTC on January 1, 1970.

Similar
POSIX time
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Meanings

Unix time1

nounUnix time (countable and uncountable, plural Unix times)

plural Unix times · alternative UNIX time

  1. uncountablecomputingA widely used date and time representation that measures time by the number of nonleap seconds that have elapsed since 00:00:00 UTC on January 1, 1970.

    Synonyms: POSIX time

  2. countablecomputingAn individual timestamp using this system.

UNIX time2

nounUNIX time (countable and uncountable, plural UNIX times)

plural UNIX times

  1. alternativecountableuncountableAlternative form of Unix time.

Synonyms & antonyms

nounA widely used date and time representation that measures time by the number of nonleap seconds that have elapsed since 00:00:00 UTC on January 1, 1970.

Similar
POSIX time
Also see
posix time

Translations

French heure Posix
  • heure Posixsystem for describing instants of time
German Unixzeit
  • Unixzeitsystem for describing instants of time
Japanese UNIX時間, UNIX時刻
  • UNIX時間 (Yunikkusu jikan)system for describing instants of time
  • UNIX時刻 (Yunikkusu jikoku)system for describing instants of time
Russian Unix-время
  • Unix-время (Unix-vremja)system for describing instants of time
Spanish tiempo Unix
  • tiempo Unixsystem for describing instants of time
Cite this entry
APA

Unix time. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Unix%20time

MLA

“Unix time.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Unix%20time. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “Unix time,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Unix%20time.

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