Learn how to say O’clock correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word o’clock:
used to specify the hour when telling the time:
the gates will open at eight o’clock
used following a numeral to indicate direction or bearing with reference to an imaginary clock face, 12 o’clock being thought of as directly in front or overhead:
“I think we’ve got some action at 11 o’clock,” he said, gesturing toward the eastern plains