Tip 2: Work all of your muscle groups. When you lift weights, you should use a number of different machines to target all your muscle groups in one single workout. Do this same routine 2-3 days per week. A good place to start will be with 3 sets of 12 repetitions for every machine exercise.
Most universities start their courses on October 1 (at some institutions late September), and the first semester (commonly referred to as the  winter term ) ends in January. The second term starts in February or March, (the  summer term ) and ends in June. Each semester is usually 15 or 16 weeks long.
Winter solstice is 21st/22nd December when the sun is at it's weakest. However, due to seasonal lag this is still in the first third of winter generally (look at seasonal lag on wikipedia) and is not the middle of winter at all for that reason. Calendar winter also begins on the solstice. However, overall it starts to feel like winter in late November.