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.
In North America, totality will occur on the night of March 2 or early morning hours of March 3, depending on the time zone. Jamie Carter, Space.com, 1 Jan. 2026 The celebration will span multiple time zones, starting with a countdown to midnight in Eastern time and continuing with Nashville's renowned Music Note Drop. Jordana Comiter, PEOPLE, 31 Dec. 2025 The broadcast also includes a countdown to midnight Eastern Time with Haley Baylee reporting live from Times Square in New York City, connecting both time zones for a truly nationwide celebration. Jenzia Burgos, StyleCaster, 31 Dec. 2025 As the clock strikes midnight across time zones, people gather to celebrate the new year. Npr Staff, NPR, 31 Dec. 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 10 Jan. 2026.

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!