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.
Matchups against teams in the same time zone are preferred for travel convenience. — Blair Kerkhoff, Kansas City Star, 11 Aug. 2026 That weekend drift has a name — social jet lag — and the body treats it a bit like a short flight to another time zone and back, every single week. — Mark Travers, Forbes.com, 6 Aug. 2026 The everyday friction of hybrid work—from finding an open conference room to managing schedules across time zones—costs the average mid-sized company $9 million annually, according to a new study from workplace management platform Robin. — Kristin Stoller, Fortune, 27 July 2026 Baez advises adjusting sleep schedules two to three days before the flight and focusing on syncing their circadian rhythm with the new time zone by keeping screens dim. — Sophia Dyer, Condé Nast Traveler, 27 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

Rhymes for time zone

See All Rhymes for time zone

Browse Nearby Words

timeworn
time zone
Timgad
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Cite this Entry

“Time zone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/time%20zone. Accessed 13 Aug. 2026.

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Kids Definition

time zone

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

More from Merriam-Webster on time zone

Nglish: Translation of time zone for Spanish Speakers

Britannica.com: Encyclopedia article about time zone

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