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calendar
(Encyclopedia)calendar [Lat., from Kalends], system of reckoning time for the practical purpose of recording past events and calculating dates for future plans. The calendar is based on noting ordinary and easily o...French Revolutionary calendar
(Encyclopedia)French Revolutionary calendar, the official calendar of France, Nov. 24, 1793–Dec. 31, 1805. Its introduction was decreed by the Convention on Oct. 5, 1793, but it was computed from Sept. 22, 1792, ...Julian Day calendar
(Encyclopedia)Julian Day calendar, system of astronomical dating that allows the difference between two dates to be calculated more easily than conventional civil calendars with their uneven months. It was devised ...month
(Encyclopedia)month, in chronology, the conventional period of a lunation, i.e., passage of the moon through all its phases. It is usually computed at approximately 29 or 30 days. For the computation of the month a...Ides
(Encyclopedia)Ides: see calendar.Kalends
(Encyclopedia)Kalends: see calendar.Nones
(Encyclopedia)Nones: see calendar.leap year
(Encyclopedia)leap year: see calendar.New Style dates
(Encyclopedia)New Style dates: see calendar.Old Style dates
(Encyclopedia)Old Style dates: see calendar.Browse by Subject
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