Well if as you say "wednesdays around 3-10" are available, assuming that's PM maybe we could shoot for this day at 4pm for you. Basically I am GMT and 8-10:30pm are ideal for me so if you are ever available at 2-4:30pm anyday for the rest of the week let me know. I respect the fact that you may not be able to be 100% certain.
If you are 6 hours behind me, I guess the best time to play will be 4pm your time on a saturday or 5pm your time on a Friday, shall we say next friday we play at 5, failing that saturday at 4? One final thing is a question, would you be willing to play on PO instead of showdown? I don't exactly have the best system at the moment meaning I experience a lot of lag when on PS, so PO is ideal for me. The final decision is yours and I am not super bothered either way.