“There is a few years span before Paul’s supernatural vision conversion and Christ’s “death””
Per Wiki: The Conversion of Paul the Apostle, was, according to the New Testament, an event that took place in the life of Paul the Apostle which led him to cease persecuting early Christians and to become a follower of Jesus. It is normally dated by researchers to AD 33–36. The phrases Pauline conversion, Damascene conversion and Damascus Christophany, and road to Damascus allude to this event.
Paul’s conversion occurred after Jesus’ crucifixion.
Author and theologian John Stott is of the opinion that Paul’s conversion was gradual, and that the Damascus Road experience was the climax of his conversion. Stott bases this theory on Acts 26:14: “...it is hard for you to kick against the goads”. The inference is that God had pricked Paul’s conscience at the stoning of Stephen—protomartyr of Christianity—and possibly Stephen’s trial. He believes Paul additionally was aware of and troubled by Jesus Christ’s death, and that his subsequent resurrection was attested to by hundreds, fulfilling Old Testament scripture.
Estimating the year of Paul’s conversion relies on working backwards from his trial before Junius Gallio in Achaea Greece (Acts 18:12-17) around 51-52 AD, a date which gained historical credibility early in the 20th century following the discovery of four stone fragments as part of the Delphi Inscriptions, at Delphi across the Gulf from Corinth.
Most historians estimate that Gallio (brother of Seneca the Younger) became proconsul between the spring of 51 AD and the summer of 52 AD, and that his position ended no later than 53 AD. However, the trial of Paul is generally assumed to be in the earlier part of Gallio’s tenure, based on the reference (Acts 18:2) to his meeting in Corinth with Priscilla and Aquila, who had been recently expelled from Rome based on Emperor Claudius’ expulsion of some Jews from Rome, which is dated to 49-50 AD.
According to the New Testament, Paul spent eighteen months in Corinth, approximately seventeen years after his conversion. Galatians 2:1-10 states that Paul went back to Jerusalem fourteen years after his conversion, and various missions (at times with Barnabas) such as those in Acts 11:25-26 and 2 Corinthians 11:23-33 appear in the Book of Acts. The generally accepted scholarly estimate for the date of conversion of Paul is 33-36 AD, placing the death of Jesus before this date range.
That was my point even if poorly worded in response to OP