It’s 17 past 3 (Official clock system).

15:17

It’s 17 past 3.

Correct answer

15:16

It’s 16 past 3.

Error: 1 minute earlier

15:05

It’s 5 past 3.

Error: read minutes starting from hour markings and adding minutes

15:15

It’s a quarter past 3.

Error: confuse hour and minute hands