Breakfast is the only meal that I have at anything like a regular time. Usually sometime between about 8:00 and 9:30am, unless I'm going in to work early for some reason, or am on the road. Lunch is whenever I happen to think of it, or if someone else asks me to join them.
Since my Sig Other is out of the country, and I eat supper alone most of the time, supper is ... whenever. Like some others, I don't like to eat a big meal late, and if 8pm rolls around and I haven't had supper, I may just resort to a snack, some fruit, nuts, beef jerky... especially if I had a late lunch.
SF, thanks for your discussion of the English definitions.
Where I grew up, in "farm country" USA, the main meal of the day was always called Dinner. Except Saturdays, sometimes the main meal was breakfast, with no one being around the rest of the day. On work days, dinner would be the evening meal. Sundays and traditional family holidays like Thanksgiving, Christmas, etc the main meal was called Dinner, and would usually be served mid-afternoon, maybe about 2:00pm. On those days, supper would be light, perhaps some kind of cold sandwich, soup, salad, or just leftovers from dinner. Okay, sometimes a second round of cake, pie, cobbler, with homemade ice cream too.
Lindy