It’s 18 past 6 (Official clock system).

06:18

It’s 18 past 6.

Correct answer

06:19

It’s 19 past 6.

Error: 1 minute later

06:06

It’s 6 past 6.

Error: read minutes starting from hour markings and adding minutes

04:30

It’s half past 4.

Error: confuse hour and minute hands