It’s 12 past 6 (Alternative clock system).

18:12

It’s 12 past 6.

Correct answer

18:11

It’s 11 past 6.

Error: 1 minute earlier

18:04

It’s 4 past 6.

Error: read minutes starting from hour markings and adding minutes

14:30

It’s half past 2.

Error: confuse hour and minute hands