What is the name of your state (only U.S. law)? michigan i work in a ladies clothing store part time, 20 to 25 hours a week. we were just told that one of our off days will now be labled an oc day, or an on call day. it is posted on the schedule and we have to call in that day to see if we are expected to work and what shift it is. i didn't volunteer for this and i was just wondering if this is legal in michigan. if it is my day off, i feel i should be free to do with it what i will, not worry about if i have to work or not. i make minimum wage. i just need to know if this is legal. thanks