The time of harvest in the Parable is described in Rev 14, for both tare and wheat, the harvest is still future .
9 Then a third angel followed them, saying with a loud voice, “If anyone worships the beast and his image, and receives
his mark on his forehead or on his hand, 10 he himself shall also drink of the wine of the wrath of God, which is poured out full strength into the cup of His indignation. He shall be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb. 11 And the smoke of their torment ascends forever and ever; and they have no rest day or night, who worship the beast and his image, and whoever receives the mark of his name.”
12 Here is the [
g]patience of the saints; here[
h]
are those who keep the commandments of God and the faith of Jesus.
13 Then I heard a voice from heaven saying [
i]to me, “Write: ‘Blessed
are the dead who die in the Lord from now on.’ ”
“Yes,” says the Spirit, “that they may rest from their labors, and their works follow them.”
Reaping the Earth’s Harvest
14 Then I looked, and behold, a white cloud,
and on the cloud sat One like 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 who sat on the cloud, “Thrust in Your sickle and reap, for the time has come [
j]for You to reap, for the harvest of the earth is ripe.” 16 So He who sat on the cloud thrust in His sickle on the earth, and the earth was reaped.
Reaping the Grapes of Wrath
17 Then 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, who had power over fire, and he cried with a loud cry to him who had the sharp sickle, saying, “Thrust in your sharp sickle and gather the clusters of the vine of the earth, for her grapes are fully ripe.” 19
So the angel thrust his sickle into the earth and gathered the vine of the earth, and threw it into the great winepress of the wrath of God. 20 And the winepress was trampled outside the city, and blood came out of the winepress, up to the horses’ bridles, for one thousand six hundred [
k]furlongs.
And the timeline of Revelation is not entirely written in progressive events like a movie. IT moves back and forward in time to expose various truths