Shifts on Non-avalible Hours

So our store has a new front end ASM who has decided to put me on times that are not within available hours (4 PM -1 am when I'm open 6 am to 10 pm.) and more or less has done nothing to change it after I told him of this and him agreeing to change it.

Point being, what can i do if he won't change it amd bbn i can't do that shift?