Inspiration provided by TT. Sunrise this morning was at 7:51, sunset this evening is at 5:12, for a 9 hour and 21 minute day. About 12 more minutes than in St. Paul. Sunrise and sunset at the solstice on December 22 are 8:11 and 5:11, according to the website I found. 9 hours.

This is a photograph of this morning's sunrise, taken over my deck. Nice, I think. Thanks, TT.
The wind was fairly calm at sunrise, but forecast to get quite brisk and gusty later. It was also in the mid 20's. I have just two guidelines for riding in the cold. Clear and dry road surfaces, and 'Acclimate'. I took a short, fairly easy ride.... it was the coldest temperature I've ridden in this year, and it takes a few rides for my lungs and muscles to adjust. 29 degrees when I left, 32 when I got home. I made some gear adjustments, but still find that what I have keeps me relatively comfortable for about an hour or 90 minutes at the most, in these temperatures. Beyond that I start to get chilled. Not a bad ride, but fairly hard work wearing what seems like about 10 pounds of gear. Still, hard core isn't supposed to be easy.