Originally Posted by Bigshaker

Email Quote for HyattGP
"since you checked out on January 1st these nights count towards your status for 2017"

Hyatt TC state
"all your qualifying nights from January 1 through December 31, 2016 count toward earning status for the year.

"all your qualifying nights from January 1 through December 31, 2017 count toward earning status for the year.

So it seems pretty clear that my Dec 31st stay (since it's clearly indicated on my hotel bill as a qualifying night) should count as a qualifying night for 2016.