At what time was Daniel's second vision given?

Answer

"In the first year of Belshazzar king of Babylon Daniel had a dream and visions of his head upon his bed:
then he wrote the dream, and told the sum of the matters." Dan. 7:1.
NOTE - That is, in the first year of Belshazzar's office as associate king with his father
Nabonadius, or 540 BC.

Upon what basis has Christ taught us to ask forgiveness?
To what time were the prophecies of Daniel, as a whole, to be sealed?
For what did Christ reprove the Pharisees?
Why did the Lord destroy Sodom?
How does God command us to keep the Sabbath day?
7. Near the close of the three and one-half years drought in Israel, brought about as a judgment did King Ahab bring against Elijah?
What will be the third plague?

Questions & Answers are from the book Bible Readings for the Home Circle