If that is the case, then all the Marian visions about praying are worthless. Even Akita specifically said that if people pray and repent that the world would be spared. Then there's the old "prayer availeth much". There may be fewer people praying in the US, but the ones that are praying are praying longer and harder. There is a conservative revival among the yound. Christianity has flourished in other countries before where Christianity was virtually non existant.
And besides, Jesus Christ Himself said know one knew the time but the Father.
What, you think I'm gonna tell you?
What, you think I'm gonna tell you?