It’s 16 past 4 (Official clock system).

16:16

It’s 16 past 4.

Correct answer

16:17

It’s 17 past 4.

Error: 1 minute later

16:04

It’s 4 past 4.

Error: read minutes starting from hour markings and adding minutes

15:20

It’s 20 past 3.

Error: confuse hour and minute hands