It’s a quarter past 3 (Official clock system).

15:15

It’s a quarter past 3.

Correct answer

14:45

It’s a quarter to 3.

Error: mirror minute hand about the vertical axis

15:03

It’s 3 past 3.

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

15:00

It’s 3 o’clock.

Error: read as full hours