So these stores are open on Sundays too?
Yes they are. The majority of chain stores open Sundays in the UK. The larger supermarkets (Tesco in particular) open 24 hours from 00:00 or 8:00 Monday to 22:00 or 24:00 Saturday, and then 10:00 - 16:00 on Sundays. Like we don't have enough time to go shopping :p
I love it
It was always very exciting for me to shop in Tesco when I was in England, there had so much food I wanted to try!
So yay for staying open on Sundays!