Definitions for calendar year
This page provides all possible meanings and translations of the word calendar year
Random House Webster's College Dictionary
Ref: See under year (def. 1). 1
Origin of calendar year:
calendar year, civil year(noun)
the year (reckoned from January 1 to December 31) according to Gregorian calendar
The amount of time between the beginning of the first day of January and the end of the last day of December in the Gregorian calendar. (365 days, or 366 in a leap year.)
The amount of time between corresponding dates in adjacent years in any calendar.
Generally speaking, a calendar year begins on the New Year's Day of the given calendar system and ends on the day before the following New Year's Day. By convention, a calendar year consists of a natural number of days. To reconcile the calendar year with an astronomical cycle, certain years contain extra days. Through further insertion of non-day units of time, the calendar year can be further synchronized; however, these extra units of time are not considered part of the calendar. The Gregorian year begins on January 1 and ends on December 31 with a length of 365 days in an ordinary year with 8760 hours, 525600 minutes, and 31536000 seconds and 366 days in a leap year with 8784 hours, 527040 minutes, and 31622400 seconds giving an average length of 365.2425 days. Other formula-based calendars can have lengths which are further out of step with the solar cycle, for example, the Julian calendar has an average length of 365.25 days, and the Hebrew calendar has an average length of 365.2468 days.
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"calendar year." Definitions.net. STANDS4 LLC, 2014. Web. 25 Oct. 2014. <http://www.definitions.net/definition/calendar year>.