It’s 20 to 5 (Official clock system).

04:40

It’s 20 to 5.

Correct answer

05:20

It’s 20 past 5.

Error: mirror minute hand about the vertical axis

04:52

It’s 8 to 5.

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

08:20

It’s 20 past 8.

Error: confuse hour and minute hands