It’s 20 past 7 (Official clock system).

07:20

It’s 20 past 7.

Correct answer

06:40

It’s 20 to 7.

Error: mirror minute hand about the vertical axis

07:04

It’s 4 past 7.

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

04:53

It’s 7 to 5.

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