'Year' in the Bible

in the third year of his reign he gave a banquet for all his princes and attendants, the army officers of Persia and Media, the nobles and the princes of his provinces being in his presence.

So Esther was taken to King Ahasuerus to his royal palace in the tenth month which is the month Tebeth, in the seventh year of his reign.

In the first month, which is the month Nisan, in the twelfth year of King Ahasuerus, Pur, that is the lot, was cast before Haman from day to day and from month to month, until the twelfth month, that is the month Adar.