Parallel
Esther 8:12
Clementine Vulgate · Berean Standard Bible
Et constituta est per omnes provincias una ultionis dies, id est tertiadecima mensis duodecimi Adar.
The single day appointed throughout all the provinces of King Xerxes was the thirteenth day of the twelfth month, the month of Adar (note: Adar is the twelfth month of the Hebrew lunar calendar, usually occurring within the months of February and March.).