DD's boyfriend (19) works for a well-known chain of coffee shops. He has a zero hours contract but typically works 30 - 40 hours each week.
Recently they have appointed someone new in management and when this person is shift supervisor, they will occasionally ask him to come in early in case he is needed. For example, if he is supposed to work from 9 - 4, they will sometimes ask him to come in at 8 and sit in the back in case they need an extra pair of hands. He is not paid for this time unless he is needed, in which case he clocks on and begins work from this point.
Instinctively, I feel this is not fair. They are a big, profitable employer and it seems to me that the risk of paying someone for an extra half hour is a risk they can comfortably manage. He, on the other hand, has to rearrange his hours, possibly for nothing.
Does anyone have any idea where he stands legally in this situation?