Your Grand Timber Lodge ownership is based on the season in which you own.

The seasons at Grand Timber Lodge are based on a calendar year, so week 1 is the first week of January, and so on.
There are three seasons at Grand Timber Lodge:
Winter consists of weeks 1-15 and 48-50.
Summer consists of weeks 21-39.
Spring/Fall consists of weeks 16-20 and 40-46.