It’s 20 past 11 (Alternative clock system).

23:20

It’s 20 past 11.

Correct answer

22:40

It’s 20 to 11.

Error: mirror minute hand about the vertical axis

23:16

It’s 16 past 11.

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

16:37

It’s 23 to 5.

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