'Year of' in the Bible

On the fifth day of the fourth month of the thirtieth year of the exile to Babylon, while I was among the captives on the bank of the Chebar River, heaven opened up and I saw visions from God.

On the fifth day of the month in the fifth year of King Jehoiachin's imprisonment in exile,

On the first day of the first month of the twenty-seventh year of our captivity, a message came to me from the LORD, who had this to say:

On the seventh day of the first month of the eleventh year of our captivity, a message came to me from the LORD. It had this to say:

On the first day of the third month of the eleventh year of our captivity, this message came to me from the LORD:

On the first day of the twelfth month of the twelfth year of our captivity, a message came to me from the LORD, who had this to say:

On the fifteenth day of the first month of the twelfth year of our captivity, a message from the LORD came to me, and this is what it said:

On the fifth day of the tenth month of the twelfth year of our captivity, a fugitive who had escaped from Jerusalem came and informed me, "The city has been destroyed."

But if he gives a gift to any of his servants, it is to belong to the servant until the Year of Release, at which time it is to be returned to the Regent Prince. His inheritance is to belong only to his sons.