Dysfunctional as it gets, the Family

Well, I'll probably be covering this and more in class, but one thing I want to know is if anyone felt a definite time period with Family. To me, I got a definite dustbowl era feel, but at the same time a 1950's suburban dystopia feel as well. I guess really it could exist in no time at all. There is mention quite a few times that the passage of time seems to be an abstract thing, never knowing how much of it has passed. The ending itself is a talk of whether or not time should move on, if the calendar should be changed to the new year. Thoughts?