'O'clock' in the Bible

It was nine o'clock in the morning when they crucified Him.

At noon there came a darkness over the whole land, lasting till three o'clock in the afternoon.

But at three o'clock Jesus cried out with a loud voice, "Elohi, Elohi, lama sabachthani?" which means, "My God, My God, why hast Thou forsaken me?"