How colleges calculate your grades for admittance?

I wasn’t sure if I should put this in the high school forum, since it’s about high school grades, but I’m putting it here because I’m wondering about the UC system.
So I know that UC colleges use UC GPA along with the regular one to look at your grades. So how would honors classes fit in? I’ve heard that only AP classes count? I don’t have much of an opportunity to take AP my sophomore year (Except for AP History, a subject I loathe and definitely will not be considering taking AP). So I’m planning on taking a few AP’s junior year.
So I’m basically wondering if they give honors classes an extra point like they do in AP classes.