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.
Sunday isn't great for me until later (like midnight or later for you). Im pretty flexible on Saturday though so if you can manage to be on at anytime before 9 your time Ill be able to play. Otherwise what about Friday around smogon tour time?