'Ninth' in the Bible

Now Peter and John were going up to the temple at the ninth hour, the hour of prayer.

About the ninth hour of the day he clearly saw in a vision an angel of God who had just come in and said to him, “Cornelius!”

Cornelius said, “Four days ago to this hour, I was praying in my house during the ninth hour; and behold, a man stood before me in shining garments,