Gotta love my nuvi 680 sunrise/sunset calculation!

Well, Garmin sure makes it easy to find sunrise/sunset on the nuvi680.
All you gotta do is drive around until the screen changes lighting
scheme at sunrise/sunset! Gosh, how the heck could we improve on such
a simple interface? Not like that nasty old 60cx where sunrise/sunset
times were actually displayed in plain english, anytime of the day. I
guess that's the kind of the interface genius that over $800 buys you
nowadays.

.