I have migrated from the East of England to the West with some  long term living in London and the South East. On this map I grew up in pale blue and have lived on both green and dark blue areas. I currently reside on the cusp of red and grey my words for the evening meal have never altered.

Lunch occurs between noon and  2pm.

Tea is almost always just a drink unless it becomes an event with cake and sandwiches and is called afternoon tea. Small children have a late afternoon snack which I could call tea but never do.

A meal after 6 pm is supper unless I am in a restaurant choosing from a ‘dinner’ menu but I would still call it  being ‘ out for supper’

All this written before breakfast which seems pretty secure in its identity as the first meal of the day unless it slips rather too close to lunch and becomes brunch. Actually my favourite meal.