Jesus Christ made very clear that no one knows for sure when His Return will occur -
"No one knows about that day or hour, not even the angels in heaven, nor the Son, but only the Father." (Mark 13:32).
To predict a specific date, in contradiction of His Word, is something that most people would not want to do. The Bible does however outline certain clearly-defined events that will be happening before The Return. Here are two that are going to be very obvious -
A Temple, or "Holy Place," must be built in order for the prophesied "beast" dictator to cause the described abomination of desolation of it. His power is to last 42 months (3½ years), as does the ministry of the two witnesses. Until a new Temple has been constructed in Jerusalem, and until the beast and the two witnesses are clearly seen to be at work, it would be reasonable to assume that the Return of Christ is at least 42 months from now, and from any given time in the future when those things have not yet begun to happen.
And when The Return does occur, will there be any doubt about it? According to your Bible, the event will be very visible to everyone, everywhere -
Fact Finder: What will be the fate of the "beast" and his great "false prophet"?