time zone

noun

: a geographic region within which the same standard time is used

Illustration of time zone

Illustration of time zone
  • A Pacific time
  • B mountain time
  • C central time
  • D eastern time

Examples of time zone in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The deadline didn't specify a time zone. Alex Sundby, CBS News, 5 Feb. 2026 Authorities did not clarify what time zone the deadlines would fall under. Elizabeth Wolfe, CNN Money, 5 Feb. 2026 Philadelphia played on Saturday night, flew across the country to Los Angeles and had to play again Monday night in a different time zone. Tony Jones, New York Times, 4 Feb. 2026 For broadcasters, Central and South America offer less disruption in regards to time zones. Jared Bahir Browsh, Fortune, 4 Feb. 2026 See All Example Sentences for time zone

Word History

First Known Use

1882, in the meaning defined above

Time Traveler
The first known use of time zone was in 1882

Browse Nearby Words

Cite this Entry

“Time zone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/time%20zone. Accessed 12 Feb. 2026.

Kids Definition

time zone

noun
: a geographic region within which the same standard time is used

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