Can someone help me out? Understanding (past-times) meals in UK

[mbosnz]

So, there was breakfast, got that, lunch, got that, then there was 'tea' which was afternoon tea, was it not, and then a light supper, later on?

Was the main meal lunch then? I'm just wondering where the meat and veg' came in?

in the south, early 60s we had
breakfast (cereal, toast unless at the weekend then maybe a cooked breakfast as a treat)
dinner- school dinner- hot, 2 courses or dinner at home which would be the same
after school snack- small cake/scone etc
tea- about 6 ish- which would be sandwiches or possibly egg on toast etc, plus cake
supper- a milky drink (ovaltine- yuck) and a biscuit

at some point, and I'm not sure why, possibly to do with my mum working, dinner and tea swopped round, so we had lunch (which still might get called dinner) of sandwiches, cake, fruit, yoghurt in the middle of the day and a main meal- usually called dinner but if anyone said tea we'd know what they meant- and that was a hot, 2 course meal. BUT, at the weekend we would have hot lunch and cold tea!!!