On what day was John in the Spirit?

Answer

"I was in the Spirit on the Lord's day." Rev. 1: 10.

How did Christ make it clear to them that the Scriptures testify of Him?
What are fitting inquiries for those convicted of sin?
How are parents instructed to bring up their children?
What is the object of the International Reform Bureau?
Why will many not be prepared for this event?
Why did God give His only begotten Son to the world?
Before he was afflicted, what did he do?

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