'length of the year' is correct and usable in written English.
You can use the phrase when referring to the amount of time or the duration of a year. For example: "The length of the year is 365 days."
A player's record should be judged for what it was, in cold hard figures, across the length of the year.
This type of response makes it possible for them to remain in a particular area for the entire length of the year.
An annotated bone fragment dating back 3,500 years demonstrates that the Chinese had by then measured the length of the year to be 365 1/4 days; NASA scientists recently used these "oracle bones" to help determine how much the earth's rotation is slowing down.
They long believed that Sothis caused the Nile floods, and they discovered that the heliacal rising of the star occurred at intervals of 365.25 days rather than the 365 days of their calendar year, a correction in the length of the year that was later incorporated in the Julian calendar.
When in the 4th century bce the accepted length of the year became 365.25 days, the total number of solar calendar days involved became 2,922, and it was then realized that the octaëteris was not as satisfactory a cycle as supposed.
Because of misunderstandings, the calendar was not established in smooth operation until ad 8. Sosigenes had overestimated the length of the year by 11 minutes 14 seconds, and by the mid-1500s the cumulative effect of this error had shifted the dates of the seasons by about 10 days from Caesar's time.
Much is at stake, not least the length of the farming year.
A census determines the length of the following year's hunting.
And the solar calendar presented an even more fundamental problem that of finding the precise length of the tropical year.
That fall, he was assigned to a public school in San Jose, Calif., where, for the length of the first year, he felt in over his head.
Most of the Arab states subsequently followed this pattern, although the length of the school year varied from country to country.
