It’s 10 past 8 (Official clock system).

20:10

It’s 10 past 8.

Correct answer

19:50

It’s 10 to 8.

Error: mirror minute hand about the vertical axis

20:14

It’s 14 past 8.

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

14:40

It’s 20 to 3.

Error: confuse hour and minute hands