It’s 20 past 1 (Alternative clock system).

13:20

It’s 20 past 1.

Correct answer

12:40

It’s 20 to 1.

Error: mirror minute hand about the vertical axis

13:16

It’s 16 past 1.

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

16:13

It’s 13 past 4.

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