Esther 8:12
Upon one day in all the provinces of king Ahasuerus, namely, upon the thirteenth day of the twelfth month, which is the month Adar.
Cross-references
Esther 3:13–15
Contrast
Esther 3:13-15 sets the same date for Jewish destruction—here the date now authorizes their defense, reversing the plot.
Esther 9:1
Historical context
Esther 9:1 explicitly confirms the same date and execution of the decree from 8:12, showing its fulfillment.