It’s 18 past 12 (Official clock system).

12:18

It’s 18 past 12.

Correct answer

12:19

It’s 19 past 12.

Error: 1 minute later

12:06

It’s 6 past 12.

Error: read minutes starting from hour markings and adding minutes

16:00

It’s 4 o’clock.

Error: confuse hour and minute hands