Date of the Book of Esther

Date - From 521-495 BC Approximately. The book of Esther was written during a time when the Persian Empire ruled the world and Ahasuerus (probably Xerxes I) was the king of Persia. The events in the book of Esther probably took place around 521- 495 BC. This was during a time just before the wall of Jerusalem was rebuilt.

Link: https://bible-history.com/old-testament/bookofesther