Haggai 1:1, 14-15

On the first day of the sixth month of the second year in the reign of King Darius of Persia, GOD’s Message was delivered by the prophet Haggai to the governor of Judah, Zerubbabel son of Shealtiel, and to the high priest, Joshua son of Jehozadak

This is how GOD got Zerubbabel, Joshua, and all the people moving—got them working on the Temple of GOD-of-the-Angel-Armies. This happened on the twenty-fourth day of the sixth month in the second year of King Darius.