Topic
year.
the orbital period of the Earth: the estimated period of time for the Earth's orbit around the Sun and observed at a fixed geographic point (averaging 365.24 days); base later modified to define or adjust various calendars
The journal
Open the journal →The conversation starts in the journal — be the first to post.
About year
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 and the sidereal year are more exact. The modern calendar year, as reckoned according to the Gregorian calendar, approximates the tropical year by using a system of leap years.
Everything about year →