It’s 25 past 9 (Official clock system).

21:25

It’s 25 past 9.

Correct answer

20:35

It’s 25 to 9.

Error: mirror minute hand about the vertical axis

21:17

It’s 17 past 9.

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

21:30

It’s half past 9.

Error: 5 minutes later