Weekofyear is wrong for germany

[AlbertoD]

@Michael_Eckert

I’ve tried your extend ISOWeekNumber and it works fine. My slightly adjusted version:

Public Function ISO8601WeekNumber(extends dt as datetime) As integer
  var curloc as locale
  
  curloc = curloc.current
  
  return dt.ToString("w",curloc).ToInteger
End Function

I’m glad I was able to help.

You can use this instead:

Public Function ISO8601WeekNumber(extends dt as DateTime) As Integer
  Return dt.ToString("w",locale.Current).ToInteger
End Function