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.
Pilot fatigue can be particularly challenging when crews work overnight or travel across multiple time zones. — Kelly McGreal, FOXNews.com, 28 Oct. 2026 If such laws take effect, experts warn, the resulting patchwork of time zones could leave Chicagoans who cross state lines for school or work navigating different local times on either side of the border. — Lila Hempel-Edgers, Chicago Tribune, 27 Oct. 2026 The team is spread across different countries and time zones, but everyone brings specialist knowledge to the project. — New Atlas, 25 Oct. 2026 However, changing the time zone on your console is not as simple since your account is region-locked. — Jason Cohen, PC Magazine, 22 Oct. 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 1 Nov. 2026.

Kids Definition

time zone

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

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