Esther 8:12

Christian Standard Bible Anglicised

This would take place on a single day throughout all the provinces of King Ahasuerus, on the thirteenth day of the twelfth month, the month Adar.

Cross References

Esther 9:1

The king’s command and law  went into effect on the thirteenth day of the twelfth month,  the month Adar. On the day when the Jews’ enemies  had hoped to overpower them, just the opposite happened. The Jews overpowered those who hated them.

Ezra 4:6

At the beginning of the reign of Ahasuerus,  the people who were already in the land  wrote an accusation against the residents of Judah and Jerusalem.