Life of an auditor

I will be working full-time as a staff auditor in the Fall for a mid-size firm in New York. I've interned at another mid-size firm, and I've seen all the auditors staying pretty late. But exactly what is late? (As an intern, I got to leave by 5-6pm). How late do they expect you to stay? Do you leave when the managers/partners leave? As an intern, you have a pretty swell life. They will pet you, treat you and coddle you well, until you sign the dotted line. It is nothing like how you're treated once you join. This is prevalent in different industries though, not just accounting. Hours are different across firms and teams, so I can't tell you what you should expect, but I can only tell you what I've seen and heard. In the fall you might work until 7-7:30 at times. December's usually the slowest month of the year, so you can pull of a normal work day (5-5:30). On average during busy season (Jan-April), people work till 8-8:30. Some teams work till midnight, some wo...