Number of weeks in 1821 year is 52 weeks
Weeks are according Lebanon calendar rules, Monday first day and weeks are Monday to Sunday

Week # From Date To Date Weeks from Now
Week 1 January 1, 1821 January 7, 1821 passed 10637 weeks ago
Week 2 January 8, 1821 January 14, 1821 passed 10636 weeks ago
Week 3 January 15, 1821 January 21, 1821 passed 10635 weeks ago
Week 4 January 22, 1821 January 28, 1821 passed 10634 weeks ago
Week 5 January 29, 1821 February 4, 1821 passed 10633 weeks ago
Week 6 February 5, 1821 February 11, 1821 passed 10632 weeks ago
Week 7 February 12, 1821 February 18, 1821 passed 10631 weeks ago
Week 8 February 19, 1821 February 25, 1821 passed 10630 weeks ago
Week 9 February 26, 1821 March 4, 1821 passed 10629 weeks ago
Week 10 March 5, 1821 March 11, 1821 passed 10628 weeks ago
Week 11 March 12, 1821 March 18, 1821 passed 10627 weeks ago
Week 12 March 19, 1821 March 25, 1821 passed 10626 weeks ago
Week 13 March 26, 1821 April 1, 1821 passed 10625 weeks ago
Week 14 April 2, 1821 April 8, 1821 passed 10624 weeks ago
Week 15 April 9, 1821 April 15, 1821 passed 10623 weeks ago
Week 16 April 16, 1821 April 22, 1821 passed 10622 weeks ago
Week 17 April 23, 1821 April 29, 1821 passed 10621 weeks ago
Week 18 April 30, 1821 May 6, 1821 passed 10620 weeks ago
Week 19 May 7, 1821 May 13, 1821 passed 10619 weeks ago
Week 20 May 14, 1821 May 20, 1821 passed 10618 weeks ago
Week 21 May 21, 1821 May 27, 1821 passed 10617 weeks ago
Week 22 May 28, 1821 June 3, 1821 passed 10616 weeks ago
Week 23 June 4, 1821 June 10, 1821 passed 10615 weeks ago
Week 24 June 11, 1821 June 17, 1821 passed 10614 weeks ago
Week 25 June 18, 1821 June 24, 1821 passed 10613 weeks ago
Week 26 June 25, 1821 July 1, 1821 passed 10612 weeks ago
Week 27 July 2, 1821 July 8, 1821 passed 10611 weeks ago
Week 28 July 9, 1821 July 15, 1821 passed 10610 weeks ago
Week 29 July 16, 1821 July 22, 1821 passed 10609 weeks ago
Week 30 July 23, 1821 July 29, 1821 passed 10608 weeks ago
Week 31 July 30, 1821 August 5, 1821 passed 10607 weeks ago
Week 32 August 6, 1821 August 12, 1821 passed 10606 weeks ago
Week 33 August 13, 1821 August 19, 1821 passed 10605 weeks ago
Week 34 August 20, 1821 August 26, 1821 passed 10604 weeks ago
Week 35 August 27, 1821 September 2, 1821 passed 10603 weeks ago
Week 36 September 3, 1821 September 9, 1821 passed 10602 weeks ago
Week 37 September 10, 1821 September 16, 1821 passed 10601 weeks ago
Week 38 September 17, 1821 September 23, 1821 passed 10600 weeks ago
Week 39 September 24, 1821 September 30, 1821 passed 10599 weeks ago
Week 40 October 1, 1821 October 7, 1821 passed 10598 weeks ago
Week 41 October 8, 1821 October 14, 1821 passed 10597 weeks ago
Week 42 October 15, 1821 October 21, 1821 passed 10596 weeks ago
Week 43 October 22, 1821 October 28, 1821 passed 10595 weeks ago
Week 44 October 29, 1821 November 4, 1821 passed 10594 weeks ago
Week 45 November 5, 1821 November 11, 1821 passed 10593 weeks ago
Week 46 November 12, 1821 November 18, 1821 passed 10592 weeks ago
Week 47 November 19, 1821 November 25, 1821 passed 10591 weeks ago
Week 48 November 26, 1821 December 2, 1821 passed 10590 weeks ago
Week 49 December 3, 1821 December 9, 1821 passed 10589 weeks ago
Week 50 December 10, 1821 December 16, 1821 passed 10588 weeks ago
Week 51 December 17, 1821 December 23, 1821 passed 10587 weeks ago
Week 52 December 24, 1821 December 30, 1821 passed 10586 weeks ago