When in Biblical chronology was Satan cast down?

You do not understand things at all. Satan was long cast down well before any events of the Bible where humans are involved. Satan revolted around 5 million B. C. The book of Job is a morality play, and not to be taken literally.

you are mistaken

Job 1:7 And the LORD said unto Satan, Whence comest thou? Then Satan answered the LORD, and said, From going to and fro in the earth, and from walking up and down in it.

he had been cast to the earth by that time

apparently he had been cast down to earth in Eden as he was the serpent there

Rev 12:9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.

actually some detail is necessary:

Satan had been cast out sometime shortly after Earth was created

Then much later, he assaulted heaven trying to regain entry as described in Revelation here

Rev 12:7 ¶ And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,

Rev 12:8 And prevailed not; neither was their place found any more in heaven.

Rev 12:9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.

This occurred sometime shortly preceding the dark ages of mankind's history

Of course he had fallen before Job. Job is a descendant of Adam. I believe that when you read the third chapter of Genesis where Adam fell, you are witnessing this happen just moments after the fall of satan.

Not only had satan fallen by the time Job had come along, but he had plenty of practice corrupting people.

What is it about the Book of Job that makes you believe that all of the people in it were perfect and without sin? How could that be, if we are all born in sin because of the fall of Adam?

Rev.12:3,4,6,7-12, to examine. All enemies come to be under feet of the heavenly.

Acts 2:27-35; Heb.1:1-13.

Rev.12:3 ... great red dragon, having seven heads and ten horn ...

Satan to loose freedom of Job's time at end of 7, Jesus in Rome 6.

Daniel was at 3, he gives 4 after him, Jesus was at 6, Matt.4:1-11.

Revelation was given to the ascended Jesus, Rev.1:1-3,5; 3:14; and

John is still in 6[given by Daniel, with 7 to be after 6], Rev.17:

5,6,10-14, the ever so long fallen and unholy Satan had freedom to

7, the 8th is of the 7[after John is in 6], when 7 ended, Satan is

cast down for his short time, by Michael of Dan.12:1-13, who is in

the time of the end, all of the 8th that is of the 7[1260 days is

42 months, is 3 1/2 years of WW1, KJV Bible is 303 years in the

world. Rev.11:1-3,11; 12:6,14; 13:1-5,6-10]. World from Genesis to

now:

1.

Moses and Egypt.

2.

Isaiah and Assyria.

3.

Babylon and Daniel, he gives 4 more after him to 7, ends at WW1.

Year 3460 + 5760, 5960, 5980, Jesus 6011, 6040 and now 6079,

after him = 2300, 2500, 2520, Jesus 2551, 2580 and now 2619,

Less 606 BC-1694, 1894, 1914, Jesus 1945, 1974 and now 2013,

Daniel plus-Bible-------WW1,--------WW2,--Vietnam and today.

4.

Ezra and Cyrus, temple and Jerusalem rebuilt.

5.

Alexander the Great and Greece.

6.

Jesus, John and Rome.

7.

Daniel gives to 7, year 5980, 2520 after Daniel, 1914 CE, the 8th

is of the 7.

8th.

At 99 years ago 7 ended, KJV Bible in world 402 years, year 6079,

2619 years after Daniel, 2013 CE.

Revelation 12:7 the story starts and it was suppose to happen in the last days. So it would have to be some time in our life time. So why everything today is so messed up.

good question, I would like to know as well.