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.
As the jet crosses time zones, Afterglow adjusts color temperature (warm to cool) and intensity (bright to dim) to the align with the body’s natural responses to daylight. Michael Verdon, Robb Report, 15 Aug. 2025 The next puzzle will be available at midnight in your time zone. Mark Cooper, New York Times, 14 Aug. 2025 The law also established a standard time and allowed the federal government to create five time zones. Haadiza Ogwude, The Enquirer, 14 Aug. 2025 Our research into offshore pricing shows that the rates holding up strongest are coming out of Central and South America, regions that share time zones with North America. Peter Bendor-Samuel, Forbes.com, 13 Aug. 2025 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 25 Aug. 2025.

Kids Definition

time zone

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

More from Merriam-Webster on time zone

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!