Esther 3:7

7In the first month, the month of Nisan (Mar-Apr), in the 3:7 At this time Esther had been queen about four or five years.twelfth year of King Ahasuerus, Haman cast Pur, that is, the lot, cast before him day after day [to find a lucky day to approach the king], month after month, until the twelfth month, the month of Adar (Feb-Mar).