It’s 23 past 8 (Official clock system).

08:23

It’s 23 past 8.

Correct answer

08:22

It’s 22 past 8.

Error: 1 minute earlier

08:07

It’s 7 past 8.

Error: read minutes starting from hour markings and adding minutes

05:40

It’s 20 to 6.

Error: confuse hour and minute hands