The previous screenshot shows that you have 365 days "from your anniversary" in order to qualify.
It doesn't show my "anniversary date" anywhere on the account - can anyone find this? - just the "Tier Start Date" of a few days ago, which I know is definitely not the anniversary of my joining (June 1st - still have the Gold Circle welcome email in my Gmail).
Does anyone have a different tier start date than the one shown below?
i.e. do all GC converts have the same "anniversary" of this random November date?