Number of weeks in 1687 year is 52 weeks
Weeks are according Portugal calendar rules, Monday first day and weeks are Monday to Sunday

Week # From Date To Date Weeks from Now
Week 1 December 30, 1686 January 5, 1687 passed 17630 weeks ago
Week 2 January 6, 1687 January 12, 1687 passed 17629 weeks ago
Week 3 January 13, 1687 January 19, 1687 passed 17628 weeks ago
Week 4 January 20, 1687 January 26, 1687 passed 17627 weeks ago
Week 5 January 27, 1687 February 2, 1687 passed 17626 weeks ago
Week 6 February 3, 1687 February 9, 1687 passed 17625 weeks ago
Week 7 February 10, 1687 February 16, 1687 passed 17624 weeks ago
Week 8 February 17, 1687 February 23, 1687 passed 17623 weeks ago
Week 9 February 24, 1687 March 2, 1687 passed 17622 weeks ago
Week 10 March 3, 1687 March 9, 1687 passed 17621 weeks ago
Week 11 March 10, 1687 March 16, 1687 passed 17620 weeks ago
Week 12 March 17, 1687 March 23, 1687 passed 17619 weeks ago
Week 13 March 24, 1687 March 30, 1687 passed 17618 weeks ago
Week 14 March 31, 1687 April 6, 1687 passed 17617 weeks ago
Week 15 April 7, 1687 April 13, 1687 passed 17616 weeks ago
Week 16 April 14, 1687 April 20, 1687 passed 17615 weeks ago
Week 17 April 21, 1687 April 27, 1687 passed 17614 weeks ago
Week 18 April 28, 1687 May 4, 1687 passed 17613 weeks ago
Week 19 May 5, 1687 May 11, 1687 passed 17612 weeks ago
Week 20 May 12, 1687 May 18, 1687 passed 17611 weeks ago
Week 21 May 19, 1687 May 25, 1687 passed 17610 weeks ago
Week 22 May 26, 1687 June 1, 1687 passed 17609 weeks ago
Week 23 June 2, 1687 June 8, 1687 passed 17608 weeks ago
Week 24 June 9, 1687 June 15, 1687 passed 17607 weeks ago
Week 25 June 16, 1687 June 22, 1687 passed 17606 weeks ago
Week 26 June 23, 1687 June 29, 1687 passed 17605 weeks ago
Week 27 June 30, 1687 July 6, 1687 passed 17604 weeks ago
Week 28 July 7, 1687 July 13, 1687 passed 17603 weeks ago
Week 29 July 14, 1687 July 20, 1687 passed 17602 weeks ago
Week 30 July 21, 1687 July 27, 1687 passed 17601 weeks ago
Week 31 July 28, 1687 August 3, 1687 passed 17600 weeks ago
Week 32 August 4, 1687 August 10, 1687 passed 17599 weeks ago
Week 33 August 11, 1687 August 17, 1687 passed 17598 weeks ago
Week 34 August 18, 1687 August 24, 1687 passed 17597 weeks ago
Week 35 August 25, 1687 August 31, 1687 passed 17596 weeks ago
Week 36 September 1, 1687 September 7, 1687 passed 17595 weeks ago
Week 37 September 8, 1687 September 14, 1687 passed 17594 weeks ago
Week 38 September 15, 1687 September 21, 1687 passed 17593 weeks ago
Week 39 September 22, 1687 September 28, 1687 passed 17592 weeks ago
Week 40 September 29, 1687 October 5, 1687 passed 17591 weeks ago
Week 41 October 6, 1687 October 12, 1687 passed 17590 weeks ago
Week 42 October 13, 1687 October 19, 1687 passed 17589 weeks ago
Week 43 October 20, 1687 October 26, 1687 passed 17588 weeks ago
Week 44 October 27, 1687 November 2, 1687 passed 17587 weeks ago
Week 45 November 3, 1687 November 9, 1687 passed 17586 weeks ago
Week 46 November 10, 1687 November 16, 1687 passed 17585 weeks ago
Week 47 November 17, 1687 November 23, 1687 passed 17584 weeks ago
Week 48 November 24, 1687 November 30, 1687 passed 17583 weeks ago
Week 49 December 1, 1687 December 7, 1687 passed 17582 weeks ago
Week 50 December 8, 1687 December 14, 1687 passed 17581 weeks ago
Week 51 December 15, 1687 December 21, 1687 passed 17580 weeks ago
Week 52 December 22, 1687 December 28, 1687 passed 17579 weeks ago