I had originally thought that I could leave my tiny studio by August 31, which is also my birthday, because that's when my contract was running out. (CORRECTION: per King Baeksu's reminder in the comment thread, I did know that our contract stipulates we must quit our residence one week before the end of the contract period. That would be August 24, not my birthday.)
I was told by the office that I had to vacate my studio by August 14 (August 15 is a national holiday, so moving on that day just wouldn't do). That's where things stood for several weeks. I was a bit pissed off by this news because it meant that I would be shoved out during my vacation (i.e., I'd have less vacation to enjoy) about 10 (corrected from 17—see above parenthetical) days earlier than I'd originally expected.
Our otherwise kind landlord, who obviously isn't coordinating with our campus office, put up the following notice for those of us who are departing:
Yes... it warms the heart to know I now must leave my residence by August 10. Catholic University is doing its best to kick us out early since we're not renewing. Well... given the bad blood that this notice generates, that makes leaving easier, emotionally speaking.