The words of Nehemiah son of Hacaliah:

Now it happened in the month of Chislev, in the twentieth year [of the Persian king], as I was in the capitol of Susa,

In the fourth year of [the reign of] King Darius [of Persia], the word of the Lord came to Zechariah on the fourth day of the ninth month, which is Chislev (Dec 7, 518 b.c.).