No, there is no such law, and furthermore, if your employer can, as a *general* matter, tell independent contractors what hours to work and where to work, they are not "independent" contractors--they are employees, eligible for overtime (if nonexempt from overtime), and for whom the employer needs to pay FICA, provide benefits (as appropriate), etc.Go to the Dept. of Labor website; you can find the "tests" for whether someone is an independent contractor or not. Probably the biggest factor in finding that someone is actually an employee and needs to be paid as such is that the employer exercises substantial control.There are always some exceptions depending on circumstances, of course: certain kinds of IT independent contractors might need to do their support, etc. onsite and during normal working hours, when the employer's staff needs suppport. But that's a function of the specific situation.