It’s a quarter past 12 (Official clock system).

12:15

It’s a quarter past 12.

Correct answer

23:45

It’s a quarter to 12.

Error: mirror minute hand about the vertical axis

12:03

It’s 3 past 12.

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

15:15

It’s a quarter past 3.

Error: quarter past 3