There are a few things that happen around this time which kinda confuse the issues. There will be a return of Jesus where he gathers his people, which all sides usually refer to as the rapture.
According to Jesus this happens after the Great Tribulation and Paul describes it happening at the last of the 7 trumpets of tribulation. But, according to the Revelation there is still more to be done after the Great Tribulation, especially the 7 bowls of wrath. Tribulation and wrath are often mistaken as being the same thing, but there is an important difference. Tribulation is something God allows all his people to experience, whereas wrath is specifically directed at the enemies of God.
It appears that the marriage supper described in Revelation 19 is happening up in Heaven while the 7 bowls of wrath are being poured out on a rebellious (and spiritually desolate) world below. This coincides with the description of Jesus on the white horse gathering his army of followers wearing white robes (the same robes described earlier in the chapter being given to the bride of Christ) and going down for a great battle which is almost certainly the final bowl of wrath, a.k.a the battle of Armageddon.
This gives the appearance of a second coming of Christ, but it's not.
The great tribulation is God's great wrath being poured out into the world during the sounding of the seven trumpets which include the seven vial judgments against those who took the mark of the beast, Matthew 24:21 For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
No one knows how long the first six trumpets will last, but at the sounding of the seventh trumpet the events of Rev 13 will take place for 3 1/2 years. The vial judgments are poured out on those at the end of 3 1/2 years that affects all who have taken the mark of the beast. Then immediately per Matthew 24:29 and Rev 19:11-14 will Christ return with His army of angels as He sends them out to the four corners of the earth to gather those alive at His coming and those who sleep in their graves that are His own as they are changed and then caught up to meet Christ in the air.
Satan is bound for 1000 years, but this is not a literal 1000 years, but a figurative number as in Deuteronomy 7:9; 1Chronicles 16:15; Psalms 50:10; 90:4; 105:8 Ecc 6:6; 7:28; Daniel 5:1; 2Peter 3:8. Revelation 20:1-8 is the only passage in the entire Bible that the premillinialists have as the basis for the "1000 year reign." Rev 20:4 doesn't speak about a 1000 year reign of Christ it says (remember this is only a vision John received) "and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God and they lived and reigned with Christ a thousand years." It's not Christ that reigns 1000 years, but those who were killed for God's sake that reign with Christ 1000 years.
After Satan is released he tries once again to destroy the saints of God as he gathers his demons from the four quarters of the earth to surround the camp of the saints, being the battle of Armageddon, but the demons are destroyed by fire sent down from heaven and Satan is cast into the lake of fire. The final act of God is the great White throne judgement, the earth and heaven made new again and the New Jerusalem ushered down where we will be with Christ forever.
This all happens on the last day when Christ returns as no one knows the actual length of time this will be as all things are done in the blink of an eye in God's timing, but yet all done on the last day.
Why do pretribbers not believe these scriptures posted below.
Matthew 24:29 Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken: 30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. 31 And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.
John 3:13 And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
John 5:28 Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice, 29 And shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto the resurrection of damnation.
John 6:40 And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day.
Rev 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war. 12 His eyes were as a flame of fire, and on his head were many crowns; and he had a name written, that no man knew, but he himself. 13 And he was clothed with a vesture dipped in blood: and his name is called The Word of God. 14 And the armies which were in heaven followed him upon white horses, clothed in fine linen, white and clean.
I do not label myself according to pre, mid or amill, but to only believe whether I am alive at His coming or a sleep in the grave His coming will be on the last day as He only returns one time, Matthew 24:29-31; John 5:28, 29; 6:40; 1 Corinthians 15:51-58; 1 Thessalonians 4:13-18; Rev 19:11-21.