Yes. 'Young workers' (ie 16 and 17 year olds) are entitled to two full days off a week, although this can be reduced to 36 hours if the nature of the job makes it unavoidable. It is also worth noting that 'young workers' may not ordinarily work more than eight hours a day and 40 hours a week. These working hours may not be averaged out and there is no opt-out available. They are also entitled to marginally longer breaks in the working day (30 minutes), if a period of work extends to 4.5 hours.