Ezekiel 31:1

And it came to pass in the eleventh year, in the third month, in the first day of the month, that the word of the Lord came unto me, saying,

Cross-reference

Ezekiel 30:20 gives a date earlier in the same year (11th year, 1st month), showing the sequence of oracles.

Jeremiah 52:5 records that Jerusalem was besieged until the 11th year — the same year this prophecy was given.

Jeremiah 52:6 dates the severe famine in Jerusalem to the 11th year, 4th month — close to this oracle's date.