Gregorian - Sunday-based, week 40, 1 month
      October 2013     
   Su Mo Tu We Th Fr Sa
40        1  2  3  4  5
41  6  7  8  9 10 11 12
42 13 14 15 16 17 18 19
43 20 21 22 23 24 25 26
44 27 28 29 30 31