Now in the fifth month, on the seventh day of the month, which was the 19th year of king Nebuchadnezzar, king of Babylon, came Nebuzaradan the captain of the guard, a servant of the king of Babylon, to Jerusalem. Bible

“on the seventh day.” Jeremiah 52:12 says the tenth day. One of the two dates is a copyists error, but it is unclear which.

Commentary for: 2 Kings 25:8