It’s 29 to 6 (Official clock system).

05:31

It’s 29 to 6.

Correct answer

05:30

It’s half past 5.

Error: 1 minute earlier

04:53

It’s 7 to 5.

Error: read minutes starting from hour markings and adding minutes

06:25

It’s 25 past 6.

Error: confuse hour and minute hands