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.

What is sin?
20. When and by what church council was the observance of the seventh day forbidden, and Sunday observance enjoined ?
To whom does the Sabbath belong?
Who did He say would be saved?
What change is made in Satan's condition at the close of the one thousand years?
What is promised those who add grace to grace?
What is our duty toward the outcast and wandering?

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