Sorry if this has been asked before but I could not find the answer.

I'm thinking of making a booking over New Year's; likely something like Dec 30/09 to Jan 2/10. Would the nights be counted as 2009 or 2010 for status qualification?

I've already qualified for 2010 platnium through the Amex Plat promotion. I'm hoping that such a stay would be counted as 2010 to help earn status for 2011.