'Two and thirtieth' in the Bible

Moreover from the time that I was appointed to be their governor in the land of Judah, from the twentieth year even unto the two and thirtieth year of Artaxerxes the king, that is , twelve years, I and my brethren have not eaten the bread of the governor.

But in all this time I was not at Jerusalem; for in the two and thirtieth year of Artaxerxes king of Babylon I went unto the king: and after certain days asked I leave of the king,