Week Numbers 1866 in Luxembourg
Number of weeks in 1866 year is 52 weeks
Weeks are according Luxembourg calendar rules, Monday first day and weeks are Monday to Sunday
| Week # | From Date | To Date | Weeks from Now |
|---|---|---|---|
| Week 1 | January 1, 1866 | January 7, 1866 | passed 8282 weeks ago |
| Week 2 | January 8, 1866 | January 14, 1866 | passed 8281 weeks ago |
| Week 3 | January 15, 1866 | January 21, 1866 | passed 8280 weeks ago |
| Week 4 | January 22, 1866 | January 28, 1866 | passed 8279 weeks ago |
| Week 5 | January 29, 1866 | February 4, 1866 | passed 8278 weeks ago |
| Week 6 | February 5, 1866 | February 11, 1866 | passed 8277 weeks ago |
| Week 7 | February 12, 1866 | February 18, 1866 | passed 8276 weeks ago |
| Week 8 | February 19, 1866 | February 25, 1866 | passed 8275 weeks ago |
| Week 9 | February 26, 1866 | March 4, 1866 | passed 8274 weeks ago |
| Week 10 | March 5, 1866 | March 11, 1866 | passed 8273 weeks ago |
| Week 11 | March 12, 1866 | March 18, 1866 | passed 8272 weeks ago |
| Week 12 | March 19, 1866 | March 25, 1866 | passed 8271 weeks ago |
| Week 13 | March 26, 1866 | April 1, 1866 | passed 8270 weeks ago |
| Week 14 | April 2, 1866 | April 8, 1866 | passed 8269 weeks ago |
| Week 15 | April 9, 1866 | April 15, 1866 | passed 8268 weeks ago |
| Week 16 | April 16, 1866 | April 22, 1866 | passed 8267 weeks ago |
| Week 17 | April 23, 1866 | April 29, 1866 | passed 8266 weeks ago |
| Week 18 | April 30, 1866 | May 6, 1866 | passed 8265 weeks ago |
| Week 19 | May 7, 1866 | May 13, 1866 | passed 8264 weeks ago |
| Week 20 | May 14, 1866 | May 20, 1866 | passed 8263 weeks ago |
| Week 21 | May 21, 1866 | May 27, 1866 | passed 8262 weeks ago |
| Week 22 | May 28, 1866 | June 3, 1866 | passed 8261 weeks ago |
| Week 23 | June 4, 1866 | June 10, 1866 | passed 8260 weeks ago |
| Week 24 | June 11, 1866 | June 17, 1866 | passed 8259 weeks ago |
| Week 25 | June 18, 1866 | June 24, 1866 | passed 8258 weeks ago |
| Week 26 | June 25, 1866 | July 1, 1866 | passed 8257 weeks ago |
| Week 27 | July 2, 1866 | July 8, 1866 | passed 8256 weeks ago |
| Week 28 | July 9, 1866 | July 15, 1866 | passed 8255 weeks ago |
| Week 29 | July 16, 1866 | July 22, 1866 | passed 8254 weeks ago |
| Week 30 | July 23, 1866 | July 29, 1866 | passed 8253 weeks ago |
| Week 31 | July 30, 1866 | August 5, 1866 | passed 8252 weeks ago |
| Week 32 | August 6, 1866 | August 12, 1866 | passed 8251 weeks ago |
| Week 33 | August 13, 1866 | August 19, 1866 | passed 8250 weeks ago |
| Week 34 | August 20, 1866 | August 26, 1866 | passed 8249 weeks ago |
| Week 35 | August 27, 1866 | September 2, 1866 | passed 8248 weeks ago |
| Week 36 | September 3, 1866 | September 9, 1866 | passed 8247 weeks ago |
| Week 37 | September 10, 1866 | September 16, 1866 | passed 8246 weeks ago |
| Week 38 | September 17, 1866 | September 23, 1866 | passed 8245 weeks ago |
| Week 39 | September 24, 1866 | September 30, 1866 | passed 8244 weeks ago |
| Week 40 | October 1, 1866 | October 7, 1866 | passed 8243 weeks ago |
| Week 41 | October 8, 1866 | October 14, 1866 | passed 8242 weeks ago |
| Week 42 | October 15, 1866 | October 21, 1866 | passed 8241 weeks ago |
| Week 43 | October 22, 1866 | October 28, 1866 | passed 8240 weeks ago |
| Week 44 | October 29, 1866 | November 4, 1866 | passed 8239 weeks ago |
| Week 45 | November 5, 1866 | November 11, 1866 | passed 8238 weeks ago |
| Week 46 | November 12, 1866 | November 18, 1866 | passed 8237 weeks ago |
| Week 47 | November 19, 1866 | November 25, 1866 | passed 8236 weeks ago |
| Week 48 | November 26, 1866 | December 2, 1866 | passed 8235 weeks ago |
| Week 49 | December 3, 1866 | December 9, 1866 | passed 8234 weeks ago |
| Week 50 | December 10, 1866 | December 16, 1866 | passed 8233 weeks ago |
| Week 51 | December 17, 1866 | December 23, 1866 | passed 8232 weeks ago |
| Week 52 | December 24, 1866 | December 30, 1866 | passed 8231 weeks ago |