As you may note, I am currently in the Philippines. My wife and I are helping at the Ruel Foundation, an orphanage that takes children with cleft palate. We will be here until June, while the founder is on leave
Culture has nothing to do with the calendar! There was a 360 day year in ancient times and prophecy says there will be again. Isaiah 13:13 explicitly says ; the earth will be moved from her place.
As for your contention that there is no 7 year period to come and the 7 seals, 7 Trumpets and 7 Bowls may not be consecutive, those things are your assumption and it is incumbent upon you to prove anything that deviates from the Word as written.
The 3.5 year period refers, quite plainly, to the last half of the final 7 years.
And Jesus does not bring His Day of wrath at His Return. He just destroys the army of the Anti-Christ then. His wrath against the nations, that will affect all the world is the Sixth Seal, years before His Return. Proved by Isaiah 63:1-5, where He gets His garments splashed with blood. He Returns WITH garments already splashed with blood.
Your denials and determination to adjust the prophesies shows that you have another agenda to promote. One that leaves people with no true understanding of what God plans for His people in these end times.