Phrase guide

Unix time

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

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.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: POSIX time

Antonyms: none provided

2

noun

Meaning 2

An individual timestamp using this system.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Alternative form of Unix time.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

6 source translations are retained for this English entry.

  • French: heure Posix — system for describing instants of time
  • German: Unixzeit — system for describing instants of time
  • Japanese: UNIX時間 (Yunikkusu jikan) — system for describing instants of time
  • Japanese: UNIX時刻 (Yunikkusu jikoku) — system for describing instants of time
  • Russian: Unix-время (Unix-vremja) — system for describing instants of time
  • Spanish: tiempo Unix — system for describing instants of time