According to John 7:10, Jesus went up to Jerusalem to attend Sukkot in secret after his brothers went up first.
Some scholars interpret this verse as a parallel that the Lord comes for his Bride in secret like a thief during Sukkot.
If it's correct, it could be a clue that the midnight cry of Matthew 25:6 could happen around the middle of Sukkot.
And the last day, Hoshana Raba, or the 8th day of Shmini Atzeret & Simchat Torah could be for the Departure.
If not, keep watching.