Ezra 6:14-15

14So the elders of the Jews continued to build and prosper under the preaching of Haggai the prophet and Zechariah, a descendant of Iddo. They finished building the temple according to the command of the God of Israel and the decrees of Cyrus, Darius and Artaxerxes, kings of Persia.

15The temple was completed on the third day of the month Adar, in the sixth year of the reign of King Darius.