It’s 5 past 4 (Alternative clock system).

16:05

It’s 5 past 4.

Correct answer

15:55

It’s 5 to 4.

Error: mirror minute hand about the vertical axis

16:13

It’s 13 past 4.

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

13:20

It’s 20 past 1.

Error: confuse hour and minute hands