Have a look at this.
The worry, of course, being that such people are not so far removed from those with the capacity to bring armageddon into being.
For the record, I’m pretty certain that Christ won’t return in my lifetime. Call it a direct revelation from God if you like, but it’s more a pondering on the fact that if St Paul got it wrong in Thessalonians, how come any one today is so arrogant to think that they can predict or discern when it will be? About that day or hour nobody knows, and all that….