I work part time 2 days a week. It was agreed before I accepted the job that I would only work Thursdays and Fridays however my contract simply states my total contracted hours. Our offices are open for shorter working hours over Christmas which means that I can't fit all my hours in on those two days. I have been told that I therefore have to use up some of my holiday to make up my hours. It's only 3 hours so quite a minor gripe but it's irritating me that I have to do this.It's not my decision to close the offices early that week.
As we are closed Tues and Wednesday then the only day I could make up the hours is Christmas Eve. Even if I could arrange childcare it really does not make sense financially to travel in to work for just 3 hours. Are they within their rights to make me use up my precious holiday entitlement?