Как написать если на часах: 11, 9:15, 1:40, 5:50, 4:30 на английском

11

It's eleven o'clock.

it's eleven.

9:15

It's a quarter past nine.

It's fifteen minutes past nine.

It's nine fifteen.

1:40

It's twenty minutes to two.

It's one forty.

5:50

It's ten minutes to six.

It's five fifty.

4:30

It's four thirty.

It's thirty minutes to five.

It's half past four.