Как по будет 12.15, 11.25, 18.45, 20.30, 21.50, 9.30 это часы и минуты

12.15, 1) twelve fifteen p.m.2) a quarter past twelve 
11.25, 1) eleven twenty-five a.m.2) twenty-five minutes past eleven
18.45, 1) six forty-five p.m.2) a quarter to seven
20.30,.1) eight thirty p.m.2) half past eight
21.50  1) nine fifty p.m.2) ten minutes to ten
9.30    1) nine thirty a.m.2) half past nine

It is a quarter past twelve p.m.
It is twenty five past eleven a.m.
It is quarter to seven p.m.
It is  half past eight p.m.
It is ten to ten p.m.
It is half past nine a.m.