I live in Maryland, work in Washington D.C., and the corporate office is in Virgina. I woul like to know if a Supervisor can permanently or at least for 3 months change an employee's hours, which when hired did not agree to work. For example the supervisor wants me to now work a different position and time. My normal hours are 8:00 am to 4:30 pm and the other position's hours are from 11:30 am to 8:00 pm. Is there anyway I can refuse to work this change in position and hours?