I'd been told to expect literally 24 hours of darkness at this time of year, so I've been pleasantly surprised to discover that it's more like 20-22, with a small "window" of light from about 12 noon until around 2 pm, with the amount of light depending on weather conditions. What we get is a couple of hours of sunrise/sunset, which can be quite beautiful, as it surely was on this lovely Sunday afternoon, a week before Christmas.