It’s 27 past 11 (Alternative clock system).

23:27

It’s 27 past 11.

Correct answer

23:26

It’s 26 past 11.

Error: 1 minute earlier

23:07

It’s 7 past 11.

Error: read minutes starting from hour markings and adding minutes

17:55

It’s 5 to 6.

Error: confuse hour and minute hands