It’s 24 to 7 (Official clock system).

06:36

It’s 24 to 7.

Correct answer

06:35

It’s 25 to 7.

Error: 1 minute earlier

05:52

It’s 8 to 6.

Error: read minutes starting from hour markings and adding minutes

07:30

It’s half past 7.

Error: confuse hour and minute hands