Week Numbers 1666 in Canada
Number of weeks in 1666 year is 53 weeks
Weeks are according Canada calendar rules, Sunday first day and weeks are Sunday to Saturday
| Week # | From Date | To Date | Weeks from Now |
|---|---|---|---|
| Week 1 | December 27, 1665 | January 2, 1666 | passed 18719 weeks ago |
| Week 2 | January 3, 1666 | January 9, 1666 | passed 18718 weeks ago |
| Week 3 | January 10, 1666 | January 16, 1666 | passed 18717 weeks ago |
| Week 4 | January 17, 1666 | January 23, 1666 | passed 18716 weeks ago |
| Week 5 | January 24, 1666 | January 30, 1666 | passed 18715 weeks ago |
| Week 6 | January 31, 1666 | February 6, 1666 | passed 18714 weeks ago |
| Week 7 | February 7, 1666 | February 13, 1666 | passed 18713 weeks ago |
| Week 8 | February 14, 1666 | February 20, 1666 | passed 18712 weeks ago |
| Week 9 | February 21, 1666 | February 27, 1666 | passed 18711 weeks ago |
| Week 10 | February 28, 1666 | March 6, 1666 | passed 18710 weeks ago |
| Week 11 | March 7, 1666 | March 13, 1666 | passed 18709 weeks ago |
| Week 12 | March 14, 1666 | March 20, 1666 | passed 18708 weeks ago |
| Week 13 | March 21, 1666 | March 27, 1666 | passed 18707 weeks ago |
| Week 14 | March 28, 1666 | April 3, 1666 | passed 18706 weeks ago |
| Week 15 | April 4, 1666 | April 10, 1666 | passed 18705 weeks ago |
| Week 16 | April 11, 1666 | April 17, 1666 | passed 18704 weeks ago |
| Week 17 | April 18, 1666 | April 24, 1666 | passed 18703 weeks ago |
| Week 18 | April 25, 1666 | May 1, 1666 | passed 18702 weeks ago |
| Week 19 | May 2, 1666 | May 8, 1666 | passed 18701 weeks ago |
| Week 20 | May 9, 1666 | May 15, 1666 | passed 18700 weeks ago |
| Week 21 | May 16, 1666 | May 22, 1666 | passed 18699 weeks ago |
| Week 22 | May 23, 1666 | May 29, 1666 | passed 18698 weeks ago |
| Week 23 | May 30, 1666 | June 5, 1666 | passed 18697 weeks ago |
| Week 24 | June 6, 1666 | June 12, 1666 | passed 18696 weeks ago |
| Week 25 | June 13, 1666 | June 19, 1666 | passed 18695 weeks ago |
| Week 26 | June 20, 1666 | June 26, 1666 | passed 18694 weeks ago |
| Week 27 | June 27, 1666 | July 3, 1666 | passed 18693 weeks ago |
| Week 28 | July 4, 1666 | July 10, 1666 | passed 18692 weeks ago |
| Week 29 | July 11, 1666 | July 17, 1666 | passed 18691 weeks ago |
| Week 30 | July 18, 1666 | July 24, 1666 | passed 18690 weeks ago |
| Week 31 | July 25, 1666 | July 31, 1666 | passed 18689 weeks ago |
| Week 32 | August 1, 1666 | August 7, 1666 | passed 18688 weeks ago |
| Week 33 | August 8, 1666 | August 14, 1666 | passed 18687 weeks ago |
| Week 34 | August 15, 1666 | August 21, 1666 | passed 18686 weeks ago |
| Week 35 | August 22, 1666 | August 28, 1666 | passed 18685 weeks ago |
| Week 36 | August 29, 1666 | September 4, 1666 | passed 18684 weeks ago |
| Week 37 | September 5, 1666 | September 11, 1666 | passed 18683 weeks ago |
| Week 38 | September 12, 1666 | September 18, 1666 | passed 18682 weeks ago |
| Week 39 | September 19, 1666 | September 25, 1666 | passed 18681 weeks ago |
| Week 40 | September 26, 1666 | October 2, 1666 | passed 18680 weeks ago |
| Week 41 | October 3, 1666 | October 9, 1666 | passed 18679 weeks ago |
| Week 42 | October 10, 1666 | October 16, 1666 | passed 18678 weeks ago |
| Week 43 | October 17, 1666 | October 23, 1666 | passed 18677 weeks ago |
| Week 44 | October 24, 1666 | October 30, 1666 | passed 18676 weeks ago |
| Week 45 | October 31, 1666 | November 6, 1666 | passed 18675 weeks ago |
| Week 46 | November 7, 1666 | November 13, 1666 | passed 18674 weeks ago |
| Week 47 | November 14, 1666 | November 20, 1666 | passed 18673 weeks ago |
| Week 48 | November 21, 1666 | November 27, 1666 | passed 18672 weeks ago |
| Week 49 | November 28, 1666 | December 4, 1666 | passed 18671 weeks ago |
| Week 50 | December 5, 1666 | December 11, 1666 | passed 18670 weeks ago |
| Week 51 | December 12, 1666 | December 18, 1666 | passed 18669 weeks ago |
| Week 52 | December 19, 1666 | December 25, 1666 | passed 18668 weeks ago |
| Week 53 | December 26, 1666 | January 1, 1667 | passed 18667 weeks ago |