Each of the four intermediate lunar phases (see below) is around 7.4 days, but this varies slightly due to the elliptical shape of the Moon's orbit. Aside from some craters near the lunar poles, such as Shoemaker, all parts of the Moon see around 14.77 days of daylight, followed by 14.77 days of night.
This Day In History: 02/02/1887 - First Groundhog Day. The first Ground Hog day introducing Punxsutawney Phil, The Adventures of Huckleberry Finn by Samuel Clemens known as Mark Twain is released and the first GI Joe hits the market in This Day in History video. The date is February 2nd.
Spring always starts exactly on time -- on the Vernal Equinox six weeks hence. But first we have to finish winter. According to The Old Farmer's Almanac, by Groundhog Day you should still have half of your food store and half of your fuel if you are going to make it through the remainder of winter. So this is an excellent time to survey our resources and monitor our reserves.