It’s 25 to 10 (Official clock system).

09:35

It’s 25 to 10.

Correct answer

10:25

It’s 25 past 10.

Error: mirror minute hand about the vertical axis

09:53

It’s 7 to 10.

Error: read minutes as hours with ‘past’ or ‘to’

09:30

It’s half past 9.

Error: 5 minutes earlier