It could be December 20th, 2012 for all we know. Or not.
We have to repent and believe upon Jesus Christ and then live every single day like He could return any moment. The parable of the wise and foolish virgins in Matthew 25:1-13 instructs us in this.
The virgins who were wise were not called that because they knew the time of the bridegroom’s return (both groups were asleep), but they were ready with oil for their lamps. They had been prepared for his coming.
Likewise, we are “asleep” in much the same way - we’re unaware of the exact time of the return of the Lord (although I would say there are signs of his return). He wants us to be ready.
Exactly!
I don’t care when the world ends. I’m ready.