I'm based in Houston, and my interview invite also said March 25th. However, I've traded a few emails with the admissions coordinator due to some scheduling issues, and her last reply said best of luck on the "decision day of March 24th." I think the 25th thing was either a typo or, as was suggested, has to do with the question of whether midnight is the 24th or 25th. Either way, pretty sure we're getting something this evening. Good luck to everyone!