'Day' in the Bible

On the first day of the sixth month of the second year of the reign of King Darius, this message from the LORD came by Haggai the prophet to Shealtiel's son Zerubbabel, governor of Judah, and to Jehozadak's son Joshua, the high priest:

This took place on the twenty-fourth day of the sixth month of the second year of the reign of King Darius.

On the twenty-first day of the seventh month, this message from the LORD came by Haggai the prophet:

On the twenty-fourth day of the ninth month of the second year of the reign of King Darius, this message from the LORD came to Haggai the prophet:

"Pay attention from now on, from this twenty-fourth day of the ninth month, when the foundation of the LORD's Temple was laid. Pay attention!

Is there seed left in the granary? Up until now, neither the vine, the fig tree, the pomegranate, nor the olive tree has borne fruit, but from this very day I will bless you.'"

This message from the LORD came a second time to Haggai on the twenty-fourth day of the month:

On that day,' declares the LORD of the Heavenly Armies, "I will take you, my servant Zerubbabel son of Shealtiel,' declares the LORD, "and I will set you in place like a signet ring. For I have chosen you,' declares the LORD of the Heavenly Armies."