I worked third shift for a while. I timed my meals just like I would when working first shift ... first meal about an hour after waking up, etc. My schedule kind of went like this:
- 3:00pm - wake up
- 4:00pm - "breakfast" or light meal
- 9:00pm - "lunch"
- 11:00pm - start work
- 2:00am - "dinner"
- 7:30am - done working
- 8:00am - "snack" (often a bowl of cereal)
I tried to work my meals around others' schedules so I wasn't eating alone all the time. Like, I'd eat my 4:00pm meal at 5:00 with my family, or I'd eat a light 2:00am meal and meet someone for breakfast after work. I found it interesting that when I woke up at 3pm, I wasn't hungry for "breakfast" but would eat "dinner" foods instead. And then I enjoyed breakfast foods right before bed in the morning.
My big challenge was having healthy snacks available, because I worked alone with an evil honor-system candy box. I often spread my lunches out and "snacked" throughout my shift at work in order to avoid the candy.