According to sources, Satan will gain complete control of the earth on September 23, 2015. This was told to us in the book of Revelation from the New Testament.
This has also been hinted about for decades now. There have been movies and TV shows and even politicians who have claimed this to be true. Below, there is a sample of videos of what has been shown over the years that talk about what is coming and when it will be here.
September 23, 2015 is also the Jewish Day of Atonement.