'One year' in the Bible

And when the days of her purifying are out, whether it be a son or a daughter, she shall bring a lamb of one year old for a burnt offering and a young pigeon or a turtledove for a sin offering unto the door of the tabernacle of witness unto the priest:

And ye shall bring with the bread seven lambs without deformity of one year of age, and one young ox, and two rams, which shall serve for burnt offerings unto the LORD, with meat offerings and drink offerings longing to the same, to be a sacrifice of a sweet savour unto the LORD.

And ye shall offer a he goat for a sin offering: and two lambs of one year old for peace offerings.