jj can be applicable to you wherever you are. That is, jj is not limited by the areas. you can use jj here, which will help you a lot in the future exam.
the corret time of changing the exam data is uncertain, but since February, 2008, it is much more likely that the changing time is in the end of the month, approximately between 22~27. maybe you can choose the time in the middle of the month, 11~16