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.
Actually, something came up. I can no longer play at 4 PM. I can play from now to 2 PM or I can play from 6-7 PM. If neither of those times work for you, then we can reschedule for tomorrow.