Winter starts today. Bad news if you don't like cold, dark weather, but very good news if you are a spring/summer person since the days are soon getting longer.
In Seattle sunset is 4:18pm at it's earliest. Go to work in the dark, return in the dark. Enough depressing stuff, so here is something cool.
Take a picture of the sun from the same place, same time, every day, and put the images together you'll get a figure-8 pattern in the sky (called an "analemma"). The lowest point is the winter solstice, and the highest point is the summer solstice (flip upside down for Australia).
UPDATE: Check out this page.