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Sundays are usually best for me too, but I do have a basketball tournament that day. I might be able to do 6:30pm my time (GMT+11) if I go home between games to play, does that work?
I could possibly do later if we get eliminated, but if we make the finals I won't get home till 9:30 and at that point it'll be too late. So maybe I can offer a later timeslot on the day, but I won't know it at this point.