It's quarter to two.
13:30
2:15
It's quarter past five.
It's ten o'clock.
05:15
It's nine o'clock.
10:00
8:30
21:00
It's half past four.
6:45
10:45
It's quarter to eleven.
It's seven o'clock.
9:15
16:30
7:00
It's half past one.
It's half past eight.
It's quarter past nine.
It's quarter past two.
It's quarter to seven.
13:45
