Morning Shift

My work schedule is hectic these days add to that the fact that I am still adjusting with the work load and the company's culture.  Even so, I vowed not to stall my personal endeavors.  I need a work-life balance, as I always say.  One of the things that recharge me is going to the gym.  I mulled over what is the best time to do my work out.  Is it in the evening after my work or is it in the morning before I go to work?