Esther 1:3

1:3 in the third year of his reign he provided a banquet for all his officials and his servants. The army of Persia and Media was present, as well as the nobles and the officials of the provinces.

Esther 2:16

2:16 Then Esther was taken to King Ahasuerus at his royal residence in the tenth month (that is, the month of Tebeth) in the seventh year of his reign.

Esther 3:7

3:7 In the first month (that is, the month of Nisan), in the twelfth year of King Ahasuerus’ reign, pur (that is, the lot) was cast before Haman in order to determine a day and a month. It turned out to be the twelfth month (that is, the month of Adar).