It’s 6 to 11 (Official clock system).

10:54

It’s 6 to 11.

Correct answer

10:55

It’s 5 to 11.

Error: 1 minute later

09:50

It’s 10 to 10.

Error: read minutes starting from hour markings and adding minutes

11:50

It’s 10 to 12.

Error: confuse hour and minute hands