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.
Hey, I think your proposed timeframes for Thursday and Sunday both work for me. I can also do Friday or Saturday but would only be available much earlier during the day (around 1-3pm my time). Let me know which of those options work best for you!
I think Sunday would be ideal for me then as my early week is busy, so I’d like the time to prepare. However, if you don’t want to play that late in the week, I can do 1pm your time on Friday.