Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
RUWC, GMT-6, should be free any time after 11:00 AM this Friday/Saturday/Sunday, Wednesday/Thursday/Friday after 6:00 PM next week, and after 11:00 AM on Saturday/Sunday next weekend. What works best for you?