Как писать по время 15 : 45,12 : 10,11 : 15,16: 25,18 : 30,20 : 40,10: 50,9 : 05,03 : 20,14 : 30.

It's quarter to four.
It's ten  past twelve.
It's quarter past eleven.
It's twenty-five past four.
It's half past six.
It's twenty to nine.
It's ten to eleven.
Its five past nine.
It's twenty past three.
It's half past two.