Christmas should be for December. Christmas adverts have started in the UK by the 3rd of November. Shops brought Christmas products out, some mid-September. Don't get me wrong, I enjoy Christmas and it's a great time of year, but I believe that it should be for December; shops shouldn't have anything Christmas-related until the 1st of December, and there shouldn't be any Christmas advertisements on the TV until the 1st of December also.
Obviously it is November 2015 now and Christmas adverts are already on TV and Christmas products are in shops already, so this will for 2016.