With such a topic so broad we truly try to cover the basics from all angles in this group. Nothing too big or too small. Nutrition is as significant if not more as exercise is to reaching your goals so learn all you can.
Because of my schedule, I have to lift during my lunch break around 10:00am or 11:00am but sometimes I lift around 1:00pm. I usually run around 6:00pm or 7:00pm, a total of 5 miles with somedays doing HIIT in there as well. Is this enough time after my weight lifting so that I am not depleating all of the hard work I have done in the morning/afternoon?
Do what you have to do. Seriously, that is all we can do sometimes. Life gets in the way. :) If you are trying to gain weight, you will simply have to increase your caloric intake to offsett your energy expenditure.
-------------- Maximus from Gladiator....Strength and Honor!