perpetual calendar

noun

: a table for finding the day of the week for any one of a wide range of dates

Examples of perpetual calendar in a Sentence

Recent Examples on the Web
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The white-gold indices, also hand-engraved, and star trails, evoking the night sky, are joined by 18-karat-pink-gold hands, a visible flying-tourbillon cage, a dual-register split-seconds flyback chronograph, and a semi-Gregorian perpetual calendar. Oren Hartov, Robb Report, 4 Apr. 2026 According to Ben-Yehuda, the industry threshold for intricacy is the perpetual calendar, a constellation of sub-dials tracking day, month, year (even leap years) and sometimes moon phase. Adam Erace, Fortune, 4 Apr. 2026 Astronomical complications: pocket watches and wristwatches equipped with a triple calendar, a complete calendar or a perpetual calendar. Anthony Demarco, Forbes.com, 19 Jan. 2026 Most perpetual calendars are set by pressing a tiny corrector or correctors on the caseband using a tool. Carol Besler, Forbes, 25 Feb. 2025 See All Example Sentences for perpetual calendar

Word History

First Known Use

1577, in the meaning defined above

Time Traveler
The first known use of perpetual calendar was in 1577

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Cite this Entry

“Perpetual calendar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perpetual%20calendar. Accessed 18 Apr. 2026.

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