I'm paying bills while I'm talking on the phone with a vendor. I don't know that you really need to know much about the law. Actually I talked to my boss about being able to find enough time. She expects me to work more than a 40-hour week. There's not a lot of last minute stuff, aside from retrieving a file.
Bills can wait until tomorrow.
Just the amount of work requires me to work more than 40 hours. I tend to go in on Saturdays to get a chunk of time that's uninterrupted.