time zone


Definition of time zone

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

Illustration of time zone

Illustration of time zone

time zones in the conterminous United States: A Pacific time, B mountain time, C central time, D eastern time

Examples of time zone in a Sentence

Recent Examples on the Web Scientists have found that exercise and the right food can help synchronize the body to a new time zone, though research has also repeatedly shown sunlight is the most powerful tool. Angus Whitley, Los Angeles Times, "Human guinea pigs prepare for the world’s longest direct flight: 20 hours," 15 Oct. 2019 In all, that’s 11 games in 20 days in all four time zones. Ron Kroichick, SFChronicle.com, "Warriors release 2019-20 schedule: Here’s your guide to the season," 12 Aug. 2019 That’s roughly equivalent to the number of Americans living in the Pacific and Mountain West time zones combined. Joseph Cabosky, The Conversation, "If you’re using ‘millennial’ as a meaningful measurement, you should probably stop," 22 Oct. 2019 For example, a 35-mile bus trip from Steubenville, Ohio, to Moundsville, West Virginia would pass through seven different time zones, according to Smithsonian. Jennifer Leman, Popular Mechanics, "What Is Daylight Saving Time?," 7 Oct. 2019 Meanwhile, six time zones away (but still in Siberia) on the Yamal Peninsula, monstrous craters have opened up in the tundra. oregonlive, "In fast-thawing Siberia, radical climate change is warping the Earth beneath the feet of millions," 5 Oct. 2019 Close aides are known to keep their phones charged near their beds, in case Smith emails them from another time zone. Romesh Ratnesar/redmond, Time, "How Microsoft's Brad Smith is Trying to Restore Your Trust in Big Tech," 8 Sep. 2019 Glashutte Original Thirty-five time zones represented by airport codes are found on the 44mm stainless steel Senator Cosmopolite; $21,500, at Wempe Jewelers, NYC, and Feldmar WatchCo., L.A. or glashuette-original.com. Laurie Brookins, The Hollywood Reporter, "12 Timeless Travel Watches for Festival Season," 6 Sep. 2019 Such a change has been on NBA Commissioner Adam Silver’s mind for some time, especially since roughly half of the nation’s television homes are in the East time zone — but now, a number of the league’s biggest stars play on the West Coast. Tim Reynolds, baltimoresun.com, "NBA 2019-20 schedule: Opening night, Christmas Day matchups, notable reunions and more," 12 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'time zone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of time zone

1892, in the meaning defined above

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Time Traveler for time zone

Time Traveler

The first known use of time zone was in 1892

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Statistics for time zone

Last Updated

1 Dec 2019

Cite this Entry

“Time zone.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/time%20zone. Accessed 13 December 2019.

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More Definitions for time zone

time zone


English Language Learners Definition of time zone

: any one of the world's 24 divisions that has its own time

time zone


Kids Definition of time zone

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

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More from Merriam-Webster on time zone

Rhyming Dictionary: Words that rhyme with time zone

Spanish Central: Translation of time zone

Nglish: Translation of time zone for Spanish Speakers

Britannica.com: Encyclopedia article about time zone

Comments on time zone

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easily led, controlled, or managed

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