Revelation 6:12 and Revelation 3:3

"If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee" (Rev. 3.3).

So the reason you don't know when Jesus returns is because you are not watchful which is not God's will for you. Don't make excuses just because people make a plethora of false predictions in their date setting. Satan wants you to give up by all these false date setters, but God wants you to know when Jesus returns by being watchful. If you don't know when Jesus returns, you can be confident you are not watchful.

The 6 Seals are the past 20 centuries as they are general in scope. The 1st Seal recounts the cross: a bow and arrow together look like a cross, but the arrow has been shot giving Satan a deadly wound. The 7th Seal opens up the 7 trumpets of the Tribulation. The 7th trumpet pours out the 7 bowls of wrath. The second half of the Tribulation is 1260 days. In Rev. 9, the 5th trumpet (1st woe of the second half) is 5 months and the 2nd woe is 13 months. Therefore, there are 24 months for the 3rd woe containing the 7 bowls of wrath (42 - 5 - 13 = 24 months).

"And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood" (Rev. 6.12).

Haiti 2010 (320,000 died; 2nd most deaths of any earthquake on record) and Japan 2011 (4th greatest magnitude of any earthquake anywhere on earth on record).

November 3, 2013 was the long H3 Hybrid Solar Eclipse (won't happen again till 2172).

2014/15 the Total Lunar Tetrad (8th since Christ, and won't happen again till 2582/83).

Rev. 7.9 is the first rapture according to readiness (Matt. 2.40-42, Luke 21.36, Rev. 3.10) "before the throne (v.7) before the 1st trumpet of the Tribulation is blown in 8.7.

After a 7 year preparatory period, there are 2,550 days (1260+1260+30) from Feast of Trumpets Sept. 26, 2022 to Day of Atonement Sept. 19, 2029. Therefore, the 1st rapture is Sept. 26, 2022. And Jesus steps down on the mount of olives Sept. 19, 2029.