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.
Managing medications, time zones or dietary needs becomes an important part of the planning process. Lauren Schuster, Miami Herald, 3 Apr. 2026 The clock ran out on a bill aimed at moving Georgia to a new time zone, ending supporters’ hopes of abolishing the chore of changing the clocks twice per year. Caleb Groves, AJC.com, 3 Apr. 2026 Sleep and health logistics — managing medications, time zones or dietary needs — become an important part of the planning process. Lauren Schuster, Kansas City Star, 3 Apr. 2026 Moscow stands at the center of a nation comprising eleven percent of the globe’s landmass, 11 time zones and about 145 million people—some 13 million of whom live in the capital. Literary Hub, 3 Apr. 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 5 Apr. 2026.

Kids Definition

time zone

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

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