By Tom Spears, Ottawa Citizen, January 25, 2017
Here’s an oddity for those who were taught that noon is the middle of the day, and the sun is due south at 12:00. Neither is true.
Noon this time of year is not 12:00. On Tuesday and Wednesday it is at 12:15 p.m., and it’s getting steadily later, as measured by the time when the sun is at its highest, halfway between sunrise and sunset.
Midnight similarly is at 12:15 a.m. Blame something called the analemma.
http://ottawacitizen.com/news/local-news/science-of-winter-high-noon-is-running-a-little-late