Week Numbers 1866 in Brunei Darussalam
Number of weeks in 1866 year is 52 weeks
Weeks are according Brunei Darussalam 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 8289 weeks ago |
| Week 2 | January 8, 1866 | January 14, 1866 | passed 8288 weeks ago |
| Week 3 | January 15, 1866 | January 21, 1866 | passed 8287 weeks ago |
| Week 4 | January 22, 1866 | January 28, 1866 | passed 8286 weeks ago |
| Week 5 | January 29, 1866 | February 4, 1866 | passed 8285 weeks ago |
| Week 6 | February 5, 1866 | February 11, 1866 | passed 8284 weeks ago |
| Week 7 | February 12, 1866 | February 18, 1866 | passed 8283 weeks ago |
| Week 8 | February 19, 1866 | February 25, 1866 | passed 8282 weeks ago |
| Week 9 | February 26, 1866 | March 4, 1866 | passed 8281 weeks ago |
| Week 10 | March 5, 1866 | March 11, 1866 | passed 8280 weeks ago |
| Week 11 | March 12, 1866 | March 18, 1866 | passed 8279 weeks ago |
| Week 12 | March 19, 1866 | March 25, 1866 | passed 8278 weeks ago |
| Week 13 | March 26, 1866 | April 1, 1866 | passed 8277 weeks ago |
| Week 14 | April 2, 1866 | April 8, 1866 | passed 8276 weeks ago |
| Week 15 | April 9, 1866 | April 15, 1866 | passed 8275 weeks ago |
| Week 16 | April 16, 1866 | April 22, 1866 | passed 8274 weeks ago |
| Week 17 | April 23, 1866 | April 29, 1866 | passed 8273 weeks ago |
| Week 18 | April 30, 1866 | May 6, 1866 | passed 8272 weeks ago |
| Week 19 | May 7, 1866 | May 13, 1866 | passed 8271 weeks ago |
| Week 20 | May 14, 1866 | May 20, 1866 | passed 8270 weeks ago |
| Week 21 | May 21, 1866 | May 27, 1866 | passed 8269 weeks ago |
| Week 22 | May 28, 1866 | June 3, 1866 | passed 8268 weeks ago |
| Week 23 | June 4, 1866 | June 10, 1866 | passed 8267 weeks ago |
| Week 24 | June 11, 1866 | June 17, 1866 | passed 8266 weeks ago |
| Week 25 | June 18, 1866 | June 24, 1866 | passed 8265 weeks ago |
| Week 26 | June 25, 1866 | July 1, 1866 | passed 8264 weeks ago |
| Week 27 | July 2, 1866 | July 8, 1866 | passed 8263 weeks ago |
| Week 28 | July 9, 1866 | July 15, 1866 | passed 8262 weeks ago |
| Week 29 | July 16, 1866 | July 22, 1866 | passed 8261 weeks ago |
| Week 30 | July 23, 1866 | July 29, 1866 | passed 8260 weeks ago |
| Week 31 | July 30, 1866 | August 5, 1866 | passed 8259 weeks ago |
| Week 32 | August 6, 1866 | August 12, 1866 | passed 8258 weeks ago |
| Week 33 | August 13, 1866 | August 19, 1866 | passed 8257 weeks ago |
| Week 34 | August 20, 1866 | August 26, 1866 | passed 8256 weeks ago |
| Week 35 | August 27, 1866 | September 2, 1866 | passed 8255 weeks ago |
| Week 36 | September 3, 1866 | September 9, 1866 | passed 8254 weeks ago |
| Week 37 | September 10, 1866 | September 16, 1866 | passed 8253 weeks ago |
| Week 38 | September 17, 1866 | September 23, 1866 | passed 8252 weeks ago |
| Week 39 | September 24, 1866 | September 30, 1866 | passed 8251 weeks ago |
| Week 40 | October 1, 1866 | October 7, 1866 | passed 8250 weeks ago |
| Week 41 | October 8, 1866 | October 14, 1866 | passed 8249 weeks ago |
| Week 42 | October 15, 1866 | October 21, 1866 | passed 8248 weeks ago |
| Week 43 | October 22, 1866 | October 28, 1866 | passed 8247 weeks ago |
| Week 44 | October 29, 1866 | November 4, 1866 | passed 8246 weeks ago |
| Week 45 | November 5, 1866 | November 11, 1866 | passed 8245 weeks ago |
| Week 46 | November 12, 1866 | November 18, 1866 | passed 8244 weeks ago |
| Week 47 | November 19, 1866 | November 25, 1866 | passed 8243 weeks ago |
| Week 48 | November 26, 1866 | December 2, 1866 | passed 8242 weeks ago |
| Week 49 | December 3, 1866 | December 9, 1866 | passed 8241 weeks ago |
| Week 50 | December 10, 1866 | December 16, 1866 | passed 8240 weeks ago |
| Week 51 | December 17, 1866 | December 23, 1866 | passed 8239 weeks ago |
| Week 52 | December 24, 1866 | December 30, 1866 | passed 8238 weeks ago |