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Intercalation (timekeeping)

Intercalation or embolism in timekeeping is the insertion of a leap day, week, or month into some calendar years to make the calendar follow the seasons or moon phases.[1] Lunisolar calendars may require intercalations of days or months.

  1. ^ Chisholm, Hugh, ed. (1911). "Intercalary" . Encyclopædia Britannica (11th ed.). Cambridge University Press. p. 683.

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