Atlantic time

noun

Definition of Atlantic time

: the time of the fourth time zone west of Greenwich that includes the Canadian Maritime Provinces, Puerto Rico, and the Virgin Islands

First Known Use of Atlantic time

1879, in the meaning defined above

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The first known use of Atlantic time was in 1879

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Cite this Entry

“Atlantic time.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Atlantic%20time. Accessed 28 Sep. 2020.

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