You have said that people on earth during the tribulation will not know exactly when the Second Coming will take place [” … the Lord clearly said that believers on Earth at the time will not know the day or hour of the 2nd Coming.” (Matt. 24:42-44, Matt. 24:50, Matt 25:13)]. But doesn’t Daniel 12:11-12 give us the day for Jesus’ return?
“From the time that the daily sacrifice is abolished and the abomination that causes desolation is set up, there will be 1,290 days. Blessed is the one who waits for and reaches the end of the 1,335 days.”
I interpret the 1335 days of Daniel 12:12 to be the time from the beginning of the Great Tribulation to the beginning of the Millennial Kingdom. We know that the Lord won’t come back until after at least 1260 of those days have passed. But that leaves 75 days within which He could come, and nobody knows which one will be the day.
Also, after He returns, the Temple will have to be cleansed and the survivors from both Israel and the Gentile nations will have to be judged before the Kingdom Age commences. These judgments are described in Matt. 24:45-Matt. 25:46.