Coordinated Universal Time


: the international standard of time that is kept by atomic clocks around the world
abbreviation UTC
compare greenwich mean time, universal time

Examples of Coordinated Universal Time in a Sentence

Recent Examples on the Web Most timekeeping on Earth is tied to Coordinated Universal Time (UTC), which relies on an international array of atomic clocks designed to determine the most precise time possible. Andrew Paul, Popular Science, 3 Apr. 2024 Currently, time on Earth and at the International Space Station, which is in low orbit, are tracked by atomic clocks under Coordinated Universal Time (UTC), the international basis of civil and scientific time. Nik Popli, TIME, 3 Apr. 2024 They were created as a way to reconcile deviations between traditional astronomical time and the newer international reference based on atomic clocks, known as Coordinated Universal Time or UTC. Bill Chappell, NPR, 30 Mar. 2024 The Earth's rotation governs the hours, minutes and seconds of the day across the world in Coordinated Universal Time, or UTC, which was made the international standard for time measurement in 1960, according to Britannica. Leah Sarnoff, ABC News, 28 Mar. 2024 Time On Earth Time on Earth is based on Coordinated Universal Time (UTC), which closely follows this rotation. Jamie Carter, Forbes, 28 Mar. 2024 The season technically arrives in the Northern Hemisphere at 11:06 p.m. EDT on March 19, or March 20 at 3:06 a.m. Coordinated Universal Time (UTC). Laura Baisas, Popular Science, 15 Mar. 2023 Joins Sailboat Race with Team Great Britain Netflix and Facebook Marketplace on the High Seas For Brauer, a typical day during the race means waking up at sunrise — going by UTC or Coordinated Universal Time that's five hours ahead of Eastern Time. Kc Baker, Peoplemag, 2 Feb. 2024 That kickoff is 6 p.m. New Zealand Standard Time, which is 16 hours ahead of Eastern Daylight Time, and 12 hours ahead of Coordinated Universal Time (UTC), according to Mike Snider, USA TODAY, 23 July 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'Coordinated Universal Time.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of Coordinated Universal Time was in 1969

Dictionary Entries Near Coordinated Universal Time

Cite this Entry

“Coordinated Universal Time.” Dictionary, Merriam-Webster, Accessed 14 Apr. 2024.

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