The 21th December is a very important day for Scandinavians. It is the shortest day, and the longest night of the year. The sun is barely above the horizon, and even further north in Norway, it isn’t above the horizon at all. It is all night. But because of the snow it is some light anyway, even in the middle of the night. And the light is blue, dark blue.
And during the day, before the “sunrise” and after the “sunset”, there is the blue hour. Today the light wasn’t very blue, but still some shades of blue. We don’t think much about the short day, or the long night. The sun is “turning” as we say, you maybe call it winter solstice. Anyway, this day makes us happy. The next six months will be brighter and brighter unntil it is daylight all day and all night. More blue photos here.