Gregorian - Monday-based, week 52, 3 month
     November 2000            December 2000             January 2001     
   Mo Tu We Th Fr Sa Su     Mo Tu We Th Fr Sa Su     Mo Tu We Th Fr Sa Su
44        1  2  3  4  5  48              1  2  3   1  1  2  3  4  5  6  7
45  6  7  8  9 10 11 12  49  4  5  6  7  8  9 10   2  8  9 10 11 12 13 14
46 13 14 15 16 17 18 19  50 11 12 13 14 15 16 17   3 15 16 17 18 19 20 21
47 20 21 22 23 24 25 26  51 18 19 20 21 22 23 24   4 22 23 24 25 26 27 28
48 27 28 29 30           [7m52[27m 25 26 27 28 29 30 [7m31[27m   5 29 30 31