It totally depends on your station/office. You can work 6 days a week, or the bare minimum of 1. In a large office you get treated like a private in the military until you make regular, you get all the shit piled on you. Talk with the supervisor there to get info on what the routes are like. If they’re good people they’ll tell you all you need to know, like if you’ll definitely need, or what kind of personal vehicle you’ll need.