It’s 29 to 11 (Official clock system).

10:31

It’s 29 to 11.

Correct answer

10:30

It’s half past 10.

Error: 1 minute earlier

09:53

It’s 7 to 10.

Error: read minutes starting from hour markings and adding minutes

06:50

It’s 10 to 7.

Error: confuse hour and minute hands