I want to book a holiday for next year on the basis that my day off will be the same (so I want to Leave on Friday which has been my day off for the past three years since I stayed and that "like/try to keep it the same each year").
I won't find out if my day has changed until June/July. Would you book?
I can ask and offer to take unpaid leave if the day of changes,
but could be rejected in which case I'd have to wait.
Any insight on the position- moral/ethics/ legal/contractual?