Any Runners out there?

Ive started to run quite a bit lately and was wondering if much other people did on here too. I would also be interested to know which time of the day you find best to run. Ive been trying to run late afternoon early evening, but have found that I havent had much time as of late because of my conflicting class schedule and was thinking about changing my running time to late night. There is no way possible that I will run in mornings since I'm a nightowl and its impossible for me to wake up before 12. Any input is greatly appreciated on Pros and cons of running during any time of the day.