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.
Overlapping time zones, a phone that buzzes through dinner, investors who expect answers before the market opens tomorrow, and social-media pressure all threaten reputations. Julian Hayes Ii, Forbes.com, 21 July 2026 In fact, during the summer months, Nashville and Jamaica share a time zone, not to mention a reputation as good places for visitors to come and drink their troubles away. Kelefa Sanneh, New Yorker, 19 July 2026 Because everyone in the same time zone used the same social clock, the main difference was solar time. Claire Maldarelli, Scientific American, 17 July 2026 The time zones across the country would need to be adapted as well. Deepti Hajela, Chicago Tribune, 17 July 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 26 Jul. 2026.

Kids Definition

time zone

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

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