TSK · Ezra 7:8

For we are bondservants; yet our God has not forsaken us in our bondage, but has extended loving kindness to us in the sight of the kings of Persia, to give us a reviving, to set up the house of our God, and to repair its ruins, and to give us a wall in Judah and in Jerusalem.

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