'bout 6-7pm

It’s called supper or tea where I come from, and it’s served between 5 and 6pm. (We called it supper.)

during the week around 6pm, on the weekend there is no set time. We call it Dinner, or Cena.

I eat lunch during my work break, typically around noon, then dinner at about 7pm. Unless coffee counts I don't do breakfast.

Here in the souf of Ingerland, it depends on the generation you ask. I think most younger people will say the three main meals are breakfast, lunch and dinner (dinner being late afternoon/early evening).
My grandparents (born in the south and have always lived here) say breakfast, dinner and tea (dinner being early afternoon), which is how most people oop norf still say it. So it seems that the widespread adoption of B-L-D is a fairly recent thing in the South, I guess due to the influence of London and the growth of the middle class.

From 9 pm on. We call it "cena"

Dinner time is the mid day meal - hence, dinner ladies at school.

In German this is called "evening-meal"=" Abendessen" and traditionally takes place at around 18:30 o'clock. In the Netherlands this is called "dinner" too like in English, in the French speaking parts of Belgium it is "Le dîner" like in French.

growing up, dinner was always an 7-8 PM thing EXCEPT on the weekend after church, in which case 'dinner' was more like 2-3 PM ...I never heard the word supper until I was older and had dinner with a girlfiend's midwestern family - they used supper for the evening meal during the week and dinner for Sunday afternoon meals

I dunno, we used to have dinner at 8 or 9 pm? every night, now we have it at 5:30-6.

Around 20:00. It's called "janta".