Julian - Sunday-based week with week numbers - 3 month
         December 2000                   January 2001                    February 2001        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
49                     336 337   1       1   2   3   4   5   6   5                  32  33  34
50 338 339 340 341 342 343 344   2   7   8   9  10  11  12  13   6  35  36  37  38  39  40  41
51 345 346 347 348 349 350 351   3  14  15  16  17  18  19  20   7  42  43  44  45  46  47  48
52 352 353 354 355 356 357 358   4  21  22  23  24  25  26  27   8  49  50  51  52  53  54  55
53 359 360 361 362 363 364 365   5  28  29  30  31               9  56  57  58  59            
54 366                                                                                        
         December 2001                   January 2002                    February 2002        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
48                         335   1           1   2   3   4   5   5                      32  33
49 336 337 338 339 340 341 342   2   6   7   8   9  10  11  12   6  34  35  36  37  38  39  40
50 343 344 345 346 347 348 349   3  13  14  15  16  17  18  19   7  41  42  43  44  45  46  47
51 350 351 352 353 354 355 356   4  20  21  22  23  24  25  26   8  48  49  50  51  52  53  54
52 357 358 359 360 361 362 363   5  27  28  29  30  31           9  55  56  57  58  59        
53 364 365                                                                                    
         December 2002                   January 2003                    February 2003        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
49 335 336 337 338 339 340 341   1               1   2   3   4   5                          32
50 342 343 344 345 346 347 348   2   5   6   7   8   9  10  11   6  33  34  35  36  37  38  39
51 349 350 351 352 353 354 355   3  12  13  14  15  16  17  18   7  40  41  42  43  44  45  46
52 356 357 358 359 360 361 362   4  19  20  21  22  23  24  25   8  47  48  49  50  51  52  53
53 363 364 365                   5  26  27  28  29  30  31       9  54  55  56  57  58  59    
                                                                                              
         December 2008                   January 2009                    February 2009        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
49     336 337 338 339 340 341   1                   1   2   3   6  32  33  34  35  36  37  38
50 342 343 344 345 346 347 348   2   4   5   6   7   8   9  10   7  39  40  41  42  43  44  45
51 349 350 351 352 353 354 355   3  11  12  13  14  15  16  17   8  46  47  48  49  50  51  52
52 356 357 358 359 360 361 362   4  18  19  20  21  22  23  24   9  53  54  55  56  57  58  59
53 363 364 365 366               5  25  26  27  28  29  30  31                                
                                                                                              
         December 2009                   January 2010                    February 2010        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
49         335 336 337 338 339   1                       1   2   6      32  33  34  35  36  37
50 340 341 342 343 344 345 346   2   3   4   5   6   7   8   9   7  38  39  40  41  42  43  44
51 347 348 349 350 351 352 353   3  10  11  12  13  14  15  16   8  45  46  47  48  49  50  51
52 354 355 356 357 358 359 360   4  17  18  19  20  21  22  23   9  52  53  54  55  56  57  58
53 361 362 363 364 365           5  24  25  26  27  28  29  30  10  59                        
                                 6  31                                                        
         December 2010                   January 2011                    February 2011        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
49             335 336 337 338   1                           1   6          32  33  34  35  36
50 339 340 341 342 343 344 345   2   2   3   4   5   6   7   8   7  37  38  39  40  41  42  43
51 346 347 348 349 350 351 352   3   9  10  11  12  13  14  15   8  44  45  46  47  48  49  50
52 353 354 355 356 357 358 359   4  16  17  18  19  20  21  22   9  51  52  53  54  55  56  57
53 360 361 362 363 364 365       5  23  24  25  26  27  28  29  10  58  59                    
                                 6  30  31                                                    
         December 2011                   January 2012                    February 2012        
   Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat     Sun Mon Tue Wed Thu Fri Sat
49                 335 336 337   1   1   2   3   4   5   6   7   5              32  33  34  35
50 338 339 340 341 342 343 344   2   8   9  10  11  12  13  14   6  36  37  38  39  40  41  42
51 345 346 347 348 349 350 351   3  15  16  17  18  19  20  21   7  43  44  45  46  47  48  49
52 352 353 354 355 356 357 358   4  22  23  24  25  26  27  28   8  50  51  52  53  54  55  56
53 359 360 361 362 363 364 365   5  29  30  31                   9  57  58  59  60