http://www.fifa.com/about-fifa/news...ey-decisions-for-the-future-of-t-2883353.html says: "The Best FIFA Football Awards 2017 Decision to stage the second edition of world football’s official awards in London on 23 October 2017. The ceremony will crown the world’s best performers during the 2016-2017 football season." This is a change from when the awards period was a calendar year.