December calendar| Day | December | Day of the year | Week number of year |
|---|
| Saturday | Dec 1, 2040 | 335 | 48 |
| Sunday | Dec 2, 2040 | 336 | 48 |
| Monday | Dec 3, 2040 | 337 | 49 |
| Tuesday | Dec 4, 2040 | 338 | 49 |
| Wednesday | Dec 5, 2040 | 339 | 49 |
| Thursday | Dec 6, 2040 | 340 | 49 |
| Friday | Dec 7, 2040 | 341 | 49 |
| Saturday | Dec 8, 2040 | 342 | 49 |
| Sunday | Dec 9, 2040 | 343 | 49 |
| Monday | Dec 10, 2040 | 344 | 50 |
| Tuesday | Dec 11, 2040 | 345 | 50 |
| Wednesday | Dec 12, 2040 | 346 | 50 |
| Thursday | Dec 13, 2040 | 347 | 50 |
| Friday | Dec 14, 2040 | 348 | 50 |
| Saturday | Dec 15, 2040 | 349 | 50 |
| Sunday | Dec 16, 2040 | 350 | 50 |
| Monday | Dec 17, 2040 | 351 | 51 |
| Tuesday | Dec 18, 2040 | 352 | 51 |
| Wednesday | Dec 19, 2040 | 353 | 51 |
| Thursday | Dec 20, 2040 | 354 | 51 |
| Friday | Dec 21, 2040 | 355 | 51 |
| Saturday | Dec 22, 2040 | 356 | 51 |
| Sunday | Dec 23, 2040 | 357 | 51 |
| Monday | Dec 24, 2040 | 358 | 52 |
| Tuesday | Dec 25, 2040 | 359 | 52 |
| Wednesday | Dec 26, 2040 | 360 | 52 |
| Thursday | Dec 27, 2040 | 361 | 52 |
| Friday | Dec 28, 2040 | 362 | 52 |
| Saturday | Dec 29, 2040 | 363 | 52 |
| Sunday | Dec 30, 2040 | 364 | 52 |
| Monday | Dec 31, 2040 | 365 | 01 |
