Julian    - Sunday-based 3 months
    November 2147483646          December 2147483646           January 2147483647    
Sun Mon Tue Wed Thu Fri Sat  Sun Mon Tue Wed Thu Fri Sat  Sun Mon Tue Wed Thu Fri Sat
                305 306 307                          335            1   2   3   4   5
308 309 310 311 312 313 314  336 337 338 339 340 341 342    6   7   8   9  10  11  12
315 316 317 318 319 320 321  343 344 345 346 347 348 349   13  14  15  16  17  18  19
322 323 324 325 326 327 328  350 351 352 353 354 355 356   20  21  22  23  24  25  26
329 330 331 332 333 334      357 358 359 360 361 362 363   27  28  29  30  31        
                             364 365