It’s 23 to 10 (Alternative clock system).

09:37

It’s 23 to 10.

Correct answer

09:36

It’s 24 to 10.

Error: 1 minute earlier

08:51

It’s 9 to 9.

Error: read minutes starting from hour markings and adding minutes

07:45

It’s a quarter to 8.

Error: confuse hour and minute hands