Why are the June 2018 exams so late in the month?

Hi, All.

This is my first post. 🙂

I just registered for L3 and noticed that the exam date is 23 June 2018. Is there a reason that it will be later in June instead of the first Saturday of the month, as it has been the last few years?

If anyone has any insight, it would be appreciated.

Thanks!