There is nothing about a harvest in the sixth seal event text.
Here is the result of the 6th seal harvest.
Revelation 7
9
After this I beheld, and, lo, a great multitude, which no man could number, of all nations, and kindreds, and people, and tongues, stood before the throne, and before the Lamb, clothed with white robes, and palms in their hands;
10 And cried with a loud voice, saying, Salvation to our God which sitteth upon the throne, and unto the Lamb.
11 And all the angels stood round about the throne, and about the elders and the four beasts, and fell before the throne on their faces, and worshipped God,
12 Saying, Amen: Blessing, and glory, and wisdom, and thanksgiving, and honour, and power, and might, be unto our God for ever and ever. Amen.
13 And one of the elders answered, saying unto me, What are these which are arrayed in white robes? and whence came they?
14 And I said unto him, Sir, thou knowest. And he said to me,
These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb.
In the sixth seal event though, Jesus will be seen in the third heaven with sickle in hand, for the harvest of the wicked into the winepress of God's wrath,
He also harvests the righteous as seen here
Revelation 14
14 And I looked, and behold a white cloud, and upon the cloud one sat like unto the Son of man, having on his head a golden crown, and in his hand a sharp sickle.
15 And another angel came out of the temple, crying with a loud voice to him that sat on the cloud, Thrust in thy sickle, and reap: for the time is come for thee to reap; for the harvest of the earth is ripe.
16 And he that sat on the cloud thrust in his sickle on the earth; and the earth was reaped.
17 And another angel came out of the temple which is in heaven, he also having a sharp sickle.
18 And another angel came out from the altar, which had power over fire; and cried with a loud cry to him that had the sharp sickle, saying, Thrust in thy sharp sickle, and gather the clusters of the vine of the earth; for her grapes are fully ripe.
19 And the angel thrust in his sickle into the earth, and gathered the vine of the earth, and cast it into the great winepress of the wrath of God.
45 days later, when Jesus descends to earth.
It will be over a year before Jesus descends to the earth.
You keep calling saying "the tribulation" instead of great tribulation.
The tribulation of those days is the great tribulation. The great tribulation is over at the 6th seal. It is the gathering from heaven and earth. All return to heaven for the marriage supper of the Lamb. The wrath of God is on earth and only the woman, Israel, those that fled to a place of protection and the unrighteous are on earth during the wrath of God
I think you do that because of the pre-trib, mid-trib, post-trib designations that men have come up with as part of their doctrines regarding the rapture timing. In which, they mistakenly call the entire seven year 70th week of Daniel 9:27 - "the tribulation".
You are correct. The entire 70th week of Daniel is not the tribulation.
The day that Jesus descends to earth, on the last day of the 7 years, that is when the winepress of God's wrath takes place.
On that day, in Revelation 19:21, Jesus executes judgment on the armies gathered to make war on him - in the Jerusalem and immediate vicinity. At the same time, the angel given a sickle also will execute God's wrath on the rest of the kings of earth armies throughout the rest of Israel, including the Armageddon area, Revelation 14:19:20.
You've got this twisted up. You think the 7th seal runs during the other seals. No. The 7th seal is the wrath of God. The wrath of God is over at the 7th trumpet. When the 7th trumpet sounds the kingdoms of the world are become the kingdoms of our Lord. That means Jesus has returned and Armageddon has already occurred.
Revelation 11
15 And the seventh angel sounded; and there were great voices in heaven, saying,
The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.
When you see the wicked cast into the wrath of God, that event happens at the 6th seal. Then Gods wrath begins. The Armageddon event happens during the 6th trumpet. Just like the Armageddon event happens at the 6th vial. The trumpet and vials happen in the same time frame.
Revelation reads like Genesis 7. In Genesis 7 you have the flood shown multiple times, but there is one flood. You have Noah seen loading the animals' multiple times, but he only loads them once. When you are reading Revelation, you have two views of the tribulation and two views of the wrath of God.
Revelation reads chronologically from Rev 3 to Revelation 11. Revelation 7 is the exception as the events of Rev 7 occur during the 1st 6 Seals. The great tribulation is over at the 6th seal. Then the wrath of God begins when the 7th seal is opened and the 1st trumpet sounds. At the end of Revelation 11 the wrath of God is over. Jesus has returned and Armageddon has already happened. The kingdoms of this world are become the kingdoms of our Lord.
When you are reading Revelation 13 and 14 you are getting another view of the 1st 6 seals and the tribulation. When you are reading Revelation 15 and 16 you are getting another view of the 7th seal wrath of God.