"And it was the third hour, and they crucified him."
"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."
Apologists sometimes respond that there are two different time keeping systems. For an example, see "Was Jesus crucified in the third hour or the sixth hour?" There is no Biblical evidence to justify this claim. It is purely an ad hoc speculation intended to avoid believing that the Bible is less than inerrant.