31.Heaven and earth will perish and pass away, but My words will not perish or pass away.
32.But of that day or that hour not a [single] person knows, not even the angels in heaven, nor the Son, but only the Father." Mark 13:31-32 AMP.
NO ONE knows when the last day will be except our Father in Heaven. Period.
I am not saying this to disrespect anyone, or their beliefs. I am just going by the Word of God.