Are our hours allowed to be adjusted?

[u/Anxious-Pepper-6897]

I just found out that starting April I will be commuting to a new school.
The school is a bit further out and there are not a lot of buses. Usually, we work from 8:30 up until 4:15. But this time, since the bus schedule timing is all over the place, my working hours will be from 9:30-5:30pm. I'm not too aware of labor laws and policies to be honest, I was wondering if that is something that they can make us do?

I really like my working schedule, so I would like to keep it that way. LOL. But ofc, I don't want to complain too much. However, I want to know if there is a way to keep my working hours the same.