'Fifth' in the Bible

In the thirtieth year, on the fifth day of the fourth month, while I was among the exiles at the Kebar River, the heavens opened and I saw a divine vision.

(On the fifth day of the month -- it was the fifth year of King Jehoiachin's exile --

In the sixth year, in the sixth month, on the fifth of the month, as I was sitting in my house with the elders of Judah sitting in front of me, the hand of the sovereign Lord seized me.

In the seventh year, in the fifth month, on the tenth of the month, some of the elders of Israel came to seek the Lord, and they sat down in front of me.

In the twelfth year of our exile, in the tenth month, on the fifth of the month, a refugee came to me from Jerusalem saying, "The city has been defeated!"