Number of weeks in 1877 year is 52 weeks
Weeks are according Poland calendar rules, Monday first day and weeks are Monday to Sunday

Week # From Date To Date Weeks from Now
Week 1 January 1, 1877 January 7, 1877 passed 7715 weeks ago
Week 2 January 8, 1877 January 14, 1877 passed 7714 weeks ago
Week 3 January 15, 1877 January 21, 1877 passed 7713 weeks ago
Week 4 January 22, 1877 January 28, 1877 passed 7712 weeks ago
Week 5 January 29, 1877 February 4, 1877 passed 7711 weeks ago
Week 6 February 5, 1877 February 11, 1877 passed 7710 weeks ago
Week 7 February 12, 1877 February 18, 1877 passed 7709 weeks ago
Week 8 February 19, 1877 February 25, 1877 passed 7708 weeks ago
Week 9 February 26, 1877 March 4, 1877 passed 7707 weeks ago
Week 10 March 5, 1877 March 11, 1877 passed 7706 weeks ago
Week 11 March 12, 1877 March 18, 1877 passed 7705 weeks ago
Week 12 March 19, 1877 March 25, 1877 passed 7704 weeks ago
Week 13 March 26, 1877 April 1, 1877 passed 7703 weeks ago
Week 14 April 2, 1877 April 8, 1877 passed 7702 weeks ago
Week 15 April 9, 1877 April 15, 1877 passed 7701 weeks ago
Week 16 April 16, 1877 April 22, 1877 passed 7700 weeks ago
Week 17 April 23, 1877 April 29, 1877 passed 7699 weeks ago
Week 18 April 30, 1877 May 6, 1877 passed 7698 weeks ago
Week 19 May 7, 1877 May 13, 1877 passed 7697 weeks ago
Week 20 May 14, 1877 May 20, 1877 passed 7696 weeks ago
Week 21 May 21, 1877 May 27, 1877 passed 7695 weeks ago
Week 22 May 28, 1877 June 3, 1877 passed 7694 weeks ago
Week 23 June 4, 1877 June 10, 1877 passed 7693 weeks ago
Week 24 June 11, 1877 June 17, 1877 passed 7692 weeks ago
Week 25 June 18, 1877 June 24, 1877 passed 7691 weeks ago
Week 26 June 25, 1877 July 1, 1877 passed 7690 weeks ago
Week 27 July 2, 1877 July 8, 1877 passed 7689 weeks ago
Week 28 July 9, 1877 July 15, 1877 passed 7688 weeks ago
Week 29 July 16, 1877 July 22, 1877 passed 7687 weeks ago
Week 30 July 23, 1877 July 29, 1877 passed 7686 weeks ago
Week 31 July 30, 1877 August 5, 1877 passed 7685 weeks ago
Week 32 August 6, 1877 August 12, 1877 passed 7684 weeks ago
Week 33 August 13, 1877 August 19, 1877 passed 7683 weeks ago
Week 34 August 20, 1877 August 26, 1877 passed 7682 weeks ago
Week 35 August 27, 1877 September 2, 1877 passed 7681 weeks ago
Week 36 September 3, 1877 September 9, 1877 passed 7680 weeks ago
Week 37 September 10, 1877 September 16, 1877 passed 7679 weeks ago
Week 38 September 17, 1877 September 23, 1877 passed 7678 weeks ago
Week 39 September 24, 1877 September 30, 1877 passed 7677 weeks ago
Week 40 October 1, 1877 October 7, 1877 passed 7676 weeks ago
Week 41 October 8, 1877 October 14, 1877 passed 7675 weeks ago
Week 42 October 15, 1877 October 21, 1877 passed 7674 weeks ago
Week 43 October 22, 1877 October 28, 1877 passed 7673 weeks ago
Week 44 October 29, 1877 November 4, 1877 passed 7672 weeks ago
Week 45 November 5, 1877 November 11, 1877 passed 7671 weeks ago
Week 46 November 12, 1877 November 18, 1877 passed 7670 weeks ago
Week 47 November 19, 1877 November 25, 1877 passed 7669 weeks ago
Week 48 November 26, 1877 December 2, 1877 passed 7668 weeks ago
Week 49 December 3, 1877 December 9, 1877 passed 7667 weeks ago
Week 50 December 10, 1877 December 16, 1877 passed 7666 weeks ago
Week 51 December 17, 1877 December 23, 1877 passed 7665 weeks ago
Week 52 December 24, 1877 December 30, 1877 passed 7664 weeks ago