It’s 18 past 9 (Official clock system).

09:18

It’s 18 past 9.

Correct answer

09:17

It’s 17 past 9.

Error: 1 minute earlier

09:06

It’s 6 past 9.

Error: read minutes starting from hour markings and adding minutes

04:45

It’s a quarter to 5.

Error: confuse hour and minute hands