2 Kings 25:25

And it came to pass in the seventh month
Not of Gedaliah's government, but of the year, the month Tisri or September, near two months after the destruction of Jerusalem; the Jews say fifty two days after it; of the death of Gedaliah, and the man that slew him, as here related, (See Gill on Jeremiah 41:1) (See Gill on Jeremiah 41:2) (See Gill on Jeremiah 41:3).