Do you have a contract that guarantees you your hours? If, not, then yes, generally, he can offer you whatever hours he wants. If he radically cuts your hours, you may have an unemployment case to make up the difference. While there are other elements of your question that could raise some issues, as a practical matter I think it may be hard for you to appear reasonable arguing you don't have the ability to mind your hours. Its only for 2 weeks. Employees have to look at the big picture and if he is fair to you overall then it may not be wise to raise issues when Employer may err in trying to deal with an atypical situation.