'Years' in the Bible

Afterward Hezron went in to the daughter of Machir the father of Gilead, whom he married when he was sixty years old; and she bore him Segub.

Six were born to him in Hebron, and there he reigned seven years and six months. And in Jerusalem he reigned thirty-three years.

either three years of famine, or three months to be swept away before your foes, while the sword of your enemies overtakes you, or else three days of the sword of the Lord, even pestilence in the land, and the angel of the Lord destroying throughout all the territory of Israel.’ Now, therefore, consider what answer I shall return to Him who sent me.”

The Levites were numbered from thirty years old and upward, and their number by census of men was 38,000.

These were the sons of Levi according to their fathers’ households, even the heads of the fathers’ households of those of them who were counted, in the number of names by their census, doing the work for the service of the house of the Lord, from twenty years old and upward.

For by the last words of David the sons of Levi were numbered from twenty years old and upward.

But David did not count those twenty years of age and under, because the Lord had said He would multiply Israel as the stars of heaven.

The period which he reigned over Israel was forty years; he reigned in Hebron seven years and in Jerusalem thirty-three years.