Dating the rapture is unwise and unbliblical
Remember, the date of the rapture is not known because it is not a date, it's a number
Romans 11:25 Paul wrote that the church has a “full number”, and when that number is reached the Call will come for us to go up. "I do not want you to be ignorant of this mystery, brothers, so that you may not be conceited: Israel has experienced a hardening in part until the full number of the Gentiles has come in." The word 'full number' is from pleroo in the Greek, meaning 'finish (a period or task)'. The moment when we go is when the number has been reached.
So today is Tu'B'Av, a day some are looking to see as the rapture day. Tu'B'Av, of the 15th of July in the Jewish calendar was during the Second Temple period a popular holiday. It was and today still is a sort of Jewish Valentine's day. In olden days it matched up with the end of the grape harvest and the beginning of the wheat harvest. Many are looking for the rapture Monday because of this festival day. It is well to hope that Tu'B'Av is the day, and no one more than me wants to go. So while it is worthy to research the festivals, to try and match our possible rapture to this festival or that one is fruitless, because the day is not what God is basing the rapture on, it is the number, a number no one knows.
Some thought Pentecost would be the date. It came and went and we are still here. Some thought it would be Tisha'B'Av, the Jewish date of catastrophes and lamentations. That date came and went and we are still here. 1988 came and went and we are still here. Every other date came and went and we are still here. One day will be the day, but because the number has been reached.
Now, it is true that many, including me, feel a pressure, an undeniable and almost unbearable stretching like an elastic band pulled to its limit. This earth really feels that way to us, like the tension before the climax of the movie at a drawn-out moment. I feel the rapture is close. I sometimes think I can hear the indrawn breath of the Trumpet Blower! Today, tomorrow, next month. Soon. But I do not know what day it will be, and it is un-biblical to date it. The Lord has said repeatedly not to do that. When the Jews asked Him if this was the moment for their long-promised kingdom, He replied, "So when they had come together, they were asking Him, saying, “Lord, is it at this time You are restoring the kingdom to Israel?” He said to them, “It is not for you to know times or epochs which the Father has fixed by His own authority." (Acts 1:7) "For you yourselves know full well that the day of the Lord will come just like a thief in the night. (I Thessalonians 5:4). "Therefore be on the alert, for you do not know which day your Lord is coming." (Matthew 24:42)
So could the rapture be tomorrow? Yes. But it may be Thursday. Or Christmas. Or any other day THE NUMBER has been reached. Don't date the rapture, because Jesus said not to. And on a human level, it causes a build-up and then the inevitable let-down. He did not intend for the rapture to be a let-down, but to look for the Blessed Hope with all eagerness. So just say: