The rapture myth was created by a theologian named Darby in the 19th century, it comes from 4 words in the bible. There is no time table or details mentioned in the bible so as usual trying to get exact information is impossible.
I don't think the actual name 'rapture' appears in the Bible. The event itself is all over the Book however. Old and New Testament. It is the catching away of Jesus' followers before the time of tribulation. There are controversies over it but studying it for myself over a period of six months I have no doubts of its validity. Having a personal relationship with Jesus is the ticket into this event. God bless.