My table has a {start of year} date in the format “dd/mm/yyyy”.
I need to pick this up as 'week1',
and then add 7 days, for a whole year, so that I can display :-
'week2', ({start of year} + 7 days)
'week3', ({start of year} + 14 days)
etc, etc, right up to 'week52', or 'week53' in a...