King James Version
Upon one day in all the provinces of king Ahasuerus, namely, upon the thirteenth day of the twelfth month, which is the month Adar.English Standard Version
on one day throughout all the provinces of King Ahasuerus, on the thirteenth day of the twelfth month, which is the month of Adar.New International Version
The day appointed for the Jews to do this in all the provinces of King Xerxes was the thirteenth day of the twelfth month, the month of Adar.