Open forum question: How do you know the time of the end?

There is the question that is always asked about how he knows the time of the end when god says that no one knows the time of the end?
Harolds answer is that the statment is not so much that no one knows the time but it does NOT say no one CAN know the time. So basicaly he is saying that at that time god was saying no one knew, but he did NOT say they never would.
As a matter of fact he does say that they will know at the time of the end. Which is saying when we are at the time of the end we will know.
So maybe he is correct... if this is the time of the end, if it is not then he is wrong, so if that makes sense then the statment means that he is telling the truth but his truth may be wrong in regards to him knowing this.