12:50 – It's ten to one pm. 12:50 – Twenty fifty.
12:15 – a quarter past twelve або twelve fifteen, 20:20 – 20 minutes to eight (p.m.) eight forty (p.m.).
6:00 – It is six o'clock in the morning = It is six a.m. Шість годин ранку. 23:00 – It is eleven o'clock in the evening = It is eleven p.m. Одинадцята година вечора.