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Year
? TBD
Unit of time based on orbit of Earth
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A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year (approximately 365 solar days, 5 hours, 48 minutes, 45 seconds) and the sidereal year (about 20 minutes longer) are more exact. The modern calendar year, as reckoned according to the Gregorian calendar, approximates the tropical...

Instance of
Unit of time
unit without standard conversion to SI
UCUM derived unit
Subclass of
duration
Different from
Calendar year
Wikidata