O'CLOCK


Meaning of O'CLOCK in English

/ əˈklɒk; NAmE əˈklɑːk/ adverb

used with the numbers 1 to 12 when telling the time, to mean an exact hour :

He left between five and six o'clock.

at / after / before eleven o'clock

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.