It’s a quarter past 10 (Official clock system).

10:15

It’s a quarter past 10.

Correct answer

09:45

It’s a quarter to 10.

Error: mirror minute hand about the vertical axis

10:03

It’s 3 past 10.

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

03:15

It’s a quarter past 3.

Error: quarter past 3