Personally I prefer it starting on Sunday, but also here with Portuguese being the main language it only makes sense to start on Sunday, Monday to Friday are called second-fair, third-fair, fourth-fair, fifth-fair, and sixth-fair. Fair as in either market or festival.
And start week with a Monday, not a Sunday.
This also avoids every month from having a Friday the 13th
Personally I prefer it starting on Sunday, but also here with Portuguese being the main language it only makes sense to start on Sunday, Monday to Friday are called second-fair, third-fair, fourth-fair, fifth-fair, and sixth-fair. Fair as in either market or festival.