Сколько будет 1: 45 p.m , 4: 00 p.m , 6: 15 p.m , 8: 20 p.m по

1:45 - It's quarter to two p.m. = It's one forty-five p.m = 13:45
4:00 - It's four o'clock p.m. = 16:00
6:15 - It's quarter past six p.m. = It't six fifteen p.m = 18:15
8:20 - It's eight:twenty p.m = It's twenty past eight p.m = 20:20

Так и будет.Если было am то смотря по поясам.