It’s 11 o’clock (Alternative clock system).

11:00

It’s 11 o’clock.

Correct answer

10:00

It’s 10 o’clock.

Error: 1 hour earlier

00:00

It’s 12 o’clock.

Error: 1 hour later

05:00

It’s 5 o’clock.

Error: read hour hand as if it were in the opposite position