Originally Posted by
kitbag1984
No. Only have the free card so I’m gold.
Happy to book a bonus points stay. But not sure when the membership year expires
From the number of stays you mention it seems like you'd really benefit from having the Premier card (even without taking into account the annual free night). The annual fee of $89 probably makes sense for you. No judgement here, just think that you should really consider it.
Now to answer your question, membership goes by calendar year so if you are trying to qualify for platinum (or maintain gold) you need to complete the required activity before the 2019 calendar year ends.