It’s a quarter past 6 (Official clock system).

18:15

It’s a quarter past 6.

Correct answer

17:45

It’s a quarter to 6.

Error: mirror minute hand about the vertical axis

18:03

It’s 3 past 6.

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

15:15

It’s a quarter past 3.

Error: quarter past 3