How would Matthew 24:36 be explained from a Post-Tribulation perspective?

Matthew 24:36 reads: > But about that day or hour no one knows, not even the angels in heaven, nor the Son, but only the Father. (NIV) Wouldn't Post-Trib adherents be able to say that you could indeed calculate the exact day of Christ's return, because it would be exactly 7 years from the signing/enforcing of the peace treaty with Israel that's prophesied in the Bible?