The trumpet Paul was talking about ("the last trumpet") was the one Jesus mentioned in Matthew 24:31...That is at the end of the 3 1/2 year great tribulation.
Yes, that is so. And that is when Jesus is said to come and with his coming, so does the kingdom, the 3rd woe.
[“Immediately after the tribulation of those days, the sun will be darkened, and the moon will not give its light, and the stars will fall from heaven, and the powers of the heavens will be shaken. Then the sign of the Son of man will appear in heaven, and all the tribes of the earth will beat themselves in grief, and they will see the Son of man coming on the clouds of heaven with power and great glory. And he will send out his angels with a great trumpet sound, and they will gather his chosen ones together from the four winds, from one extremity of the heavens to their other extremity.] [in a moment, in the blink of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised up incorruptible, and we will be changed]
[The sixth angel blew his trumpet...
[The second woe is past. Look! The third woe is coming quickly.]
[The seventh angel blew his trumpet. And there were loud voices in heaven, saying: “The kingdom of the world has become the Kingdom of our Lord and of his Christ, and he will rule as king forever and ever.”]