Per this question, there was a comment suggesting that the 6th hour may actually be the 3rd hour – or even the noon hour.
Being unfamiliar with this, how is the 6th hour possibly the same as the 3rd hour?
Mark 15:25, 18 KJV
And it was the third hour, and they crucified him.
And began to salute him, Hail, King of the Jews!
John 19:14-16 KJV
And it was the preparation of the passover, and about the sixth hour: and he saith unto the Jews, Behold your King!
But they cried out, Away with him, away with him, crucify him. Pilate saith unto them, Shall I crucify your King? The chief priests answered, We have no king but Caesar.
Then delivered he him therefore unto them to be crucified. And they took Jesus, and led him away.