It’s 19 to 2 (Official clock system).

01:41

It’s 19 to 2.

Correct answer

01:40

It’s 20 to 2.

Error: 1 minute earlier

00:51

It’s 9 to 1.

Error: read minutes starting from hour markings and adding minutes

08:05

It’s 5 past 8.

Error: confuse hour and minute hands