I mainly plan my workout around my meals and job. If you can find a 24 hr. gym, I'd workout along the lines of when i have my meals. Your schedule seems pretty different then the normal work days, so its kinda hard to figure it out for u, plus i dont know when you eat. IF you are getting 6 meals in a 13-14 hr. span, plus work, fit your workout in around those things when u know you will work otu w/ the most intensity regarding your schedule.