It’s 20 to 12 (Official clock system).

11:40

It’s 20 to 12.

Correct answer

12:20

It’s 20 past 12.

Error: mirror minute hand about the vertical axis

11:52

It’s 8 to 12.

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

08:49

It’s 11 to 9.

Error: confuse hour and minute hands and read as hours with ‘past’ or ‘to’