Now in the fifth month, on the seventh day of the month, which was the nineteenth year of king Nebuchadnezzar, king of Babylon, Nebuzaradan the captain of the guard, a servant of the king of Babylon, came to Jerusalem.
“on the seventh day.” Jeremiah 52:12 says the tenth day. One of the two dates is a copyist’s error, but it is unclear which date is wrong. Some scholars have dated this to August 14, 586 BC (cp. NET text note).