In northern climates you notice something that effects us all. While the fall is especially crisp and wonderful in the Bay Area, the impending darkness has impact. In Estonia, where I lived once, its compounded by the fact that coming winter solstice the sun barely skirts the horizon and its basically dark except mid-day. A strange and wonderful cycle ensues. From summer solstice, the party of the year, on to Christmas people get a little depressed. From Christmas to party time moods heighten.
Im convinced daylight savings time was invented only to remind us of change. I love having mornings back again and having a cycle broken. But I do miss having daylight to play with when I knock of work and have time with the kids. You can feel in Fall the clip of a new pace, the rush the crowd backing your old team -- the time to harvest what we have sown.