intercalation
Sign in to saveinsertion of a leap day, week, or month into some calendar years to make the calendar follow the seasons or moon phases
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Article
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. Lunisolar calendars may require intercalations of days or months.
Solar calendars
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geologic time scale
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leap year
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chronometry
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time translation symmetry
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science
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history
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time
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day
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Augustus
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year
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month
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Tehran
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week
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geology
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time zone
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Gregorian calendar
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calendar system
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Ancient Egypt
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clock
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century
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