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