It’s 10 past 4 (Official clock system).

16:10

It’s 10 past 4.

Correct answer

15:50

It’s 10 to 4.

Error: mirror minute hand about the vertical axis

16:14

It’s 14 past 4.

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

14:20

It’s 20 past 2.

Error: confuse hour and minute hands