That's your center manager's fault. I was once like that now I have grown to know better. Except for some extreme circumstances every work day can be completed in seven hours or less. Every once in a while something may come up that might take a couple hours here and there, but for the most part seven hours or less.
I am sure I will get a response from some uneducated union person saying "maybe in small centers" blah blah blah but the larger the building, the shorter the day. So don't even waster your time.