In my eyes 7/7 is shorthand for French 7 jours sur 7
which translates to 7 days out of 7
. Meaning the business is open all week. Note that this does not necessarily mean that the business is also open 24h.
Indeed in France you often read 7j/7
written on shops that are open every day of the week (note the little j
, standing for jours
== days
). For example, take this Parisian info website showing a list of 24h businesses, and look at the description of the 24h pharmacy:
Pharmacie ouverte 24h/24 et 7j/77j/7 à Paris