The real problem is something that a Daylight/Standard time shift can't really fix anyway. If you are far enough north (and it's really only north, because there isn't that much population in comparable latitudes south), you're going to have a wild differential between the length of the day in winter and in summer. In a month, I'll be down to about eight hours of daylight, and in June, I have sixteen hours. That's tough, and there isn't really any way around it, short of bagging the rigid clock-bound schedule that the modern world runs on and reverting, and I don't hold out any hope of that ever happening.
So you just have to trudge along and stock up on Vitamin D supplements.