When Will the Great Tribulation Begin?

With the theory shown in this book i will try to find a possible date for the great tribulation of the end of times, not the end of all times or the end of the worldWhat i found is in the near future. And i only used catholic prophecies. After having linked some biblical prophecies, of Marian apparitions, of Saints and Blessed, and especially only by the grace of God, I could find a possible time frame for this moment in the history of humanity so crucial to which very soon we will enter. But the most important is what comes after the tribulation, which is the Kingdom of God finally established in the world. God in his infinite Mercy has wanted to give us prophecies with temporary clues, and what sense would have these temporary prophecies if nobody can study them to try to find a possible when, it is like saying I give you clues but I forbid you to investigate in those clues, it does not have sense. As these final times approach, God will give to many the grace to be able to interpret these temporary prophecies as correctly as possible to alert his people.