'Twentieth' in the Bible

In this document, I, Hacaliah's son Nehemiah, recount what occurred during the twentieth year of Artaxerxes.

It came about in the twentieth year of Artaxerxes, during the month of Nissan, the king was about to drink some wine that I was preparing for him. Now I had never looked troubled in his presence.

In addition, from the time that I was appointed to be their governor in the land of Judah (that is, during the twelve years from the twentieth to the thirty-second year of King Artaxerxes), neither I nor my relatives relied on the provisions allotted to the governor.