Ok then, everyday I'll guess it will be tomorrow, so the end of the world will be something like never. Or when our sun will explode, but it will happen far after our species will be extinct.
When I will die, the world will end for me.
Okay, that could work. Wait, I wonder if it works for robots and such? How about having a robot that says "The end of the world is tomorrow". If it happens, then the robot was finally right! If not, well... What a pointless project.