It’s 29 to 7 (Official clock system).

06:31

It’s 29 to 7.

Correct answer

06:30

It’s half past 6.

Error: 1 minute earlier

05:53

It’s 7 to 6.

Error: read minutes starting from hour markings and adding minutes

05:31

It’s 29 to 6.

Error: confuse hour and minute hands and read as nearest hour