I always exercise in the mornings on my "on" days (because of my work and class schedule, I don't have weekends off like most people but I have Monday and Wednesday off every week), whether in the form of running 4km (Friday-Sunday) or soccer practice (Tuesday and Thursday). When I'm finished with that, after only having had a glass of water before setting off, I'm pretty hungry and absolutely have to eat, usually some fruit, yogurt, and a glass of juice. On my off days I wake up relatively early still, but don't go exercising in the morning. I'm not usually hungry when I first wake up, the exercise stimulates my metabolism and makes me hungry pretty quickly, on my off days I still eat breakfast but it's usually not until 2-3 hours after having gotten out of bed.
When I worked a 9-5 job back in New Zealand before coming to university in America, I didn't have that routine in place and often didn't eat anything in the mornings (I was never hungry, occasionally my dad would have made something and I'd eat some just because it looked tasty), but would always be regretting it by 10am or so. So I ended up eating crappy "ready-made" food, only to spoil my lunch and throw off my whole eating pattern that day.