Number of weeks in 2011 year is 52 weeks
Weeks are according Belgium calendar rules, Monday first day and weeks are Monday to Sunday

Week # From Date To Date Weeks from Now
Week 1 January 3, 2011 January 9, 2011 passed 622 weeks ago
Week 2 January 10, 2011 January 16, 2011 passed 621 weeks ago
Week 3 January 17, 2011 January 23, 2011 passed 620 weeks ago
Week 4 January 24, 2011 January 30, 2011 passed 619 weeks ago
Week 5 January 31, 2011 February 6, 2011 passed 618 weeks ago
Week 6 February 7, 2011 February 13, 2011 passed 617 weeks ago
Week 7 February 14, 2011 February 20, 2011 passed 616 weeks ago
Week 8 February 21, 2011 February 27, 2011 passed 615 weeks ago
Week 9 February 28, 2011 March 6, 2011 passed 614 weeks ago
Week 10 March 7, 2011 March 13, 2011 passed 613 weeks ago
Week 11 March 14, 2011 March 20, 2011 passed 612 weeks ago
Week 12 March 21, 2011 March 27, 2011 passed 611 weeks ago
Week 13 March 28, 2011 April 3, 2011 passed 610 weeks ago
Week 14 April 4, 2011 April 10, 2011 passed 609 weeks ago
Week 15 April 11, 2011 April 17, 2011 passed 608 weeks ago
Week 16 April 18, 2011 April 24, 2011 passed 607 weeks ago
Week 17 April 25, 2011 May 1, 2011 passed 606 weeks ago
Week 18 May 2, 2011 May 8, 2011 passed 605 weeks ago
Week 19 May 9, 2011 May 15, 2011 passed 604 weeks ago
Week 20 May 16, 2011 May 22, 2011 passed 603 weeks ago
Week 21 May 23, 2011 May 29, 2011 passed 602 weeks ago
Week 22 May 30, 2011 June 5, 2011 passed 601 weeks ago
Week 23 June 6, 2011 June 12, 2011 passed 600 weeks ago
Week 24 June 13, 2011 June 19, 2011 passed 599 weeks ago
Week 25 June 20, 2011 June 26, 2011 passed 598 weeks ago
Week 26 June 27, 2011 July 3, 2011 passed 597 weeks ago
Week 27 July 4, 2011 July 10, 2011 passed 596 weeks ago
Week 28 July 11, 2011 July 17, 2011 passed 595 weeks ago
Week 29 July 18, 2011 July 24, 2011 passed 594 weeks ago
Week 30 July 25, 2011 July 31, 2011 passed 593 weeks ago
Week 31 August 1, 2011 August 7, 2011 passed 592 weeks ago
Week 32 August 8, 2011 August 14, 2011 passed 591 weeks ago
Week 33 August 15, 2011 August 21, 2011 passed 590 weeks ago
Week 34 August 22, 2011 August 28, 2011 passed 589 weeks ago
Week 35 August 29, 2011 September 4, 2011 passed 588 weeks ago
Week 36 September 5, 2011 September 11, 2011 passed 587 weeks ago
Week 37 September 12, 2011 September 18, 2011 passed 586 weeks ago
Week 38 September 19, 2011 September 25, 2011 passed 585 weeks ago
Week 39 September 26, 2011 October 2, 2011 passed 584 weeks ago
Week 40 October 3, 2011 October 9, 2011 passed 583 weeks ago
Week 41 October 10, 2011 October 16, 2011 passed 582 weeks ago
Week 42 October 17, 2011 October 23, 2011 passed 581 weeks ago
Week 43 October 24, 2011 October 30, 2011 passed 580 weeks ago
Week 44 October 31, 2011 November 6, 2011 passed 579 weeks ago
Week 45 November 7, 2011 November 13, 2011 passed 578 weeks ago
Week 46 November 14, 2011 November 20, 2011 passed 577 weeks ago
Week 47 November 21, 2011 November 27, 2011 passed 576 weeks ago
Week 48 November 28, 2011 December 4, 2011 passed 575 weeks ago
Week 49 December 5, 2011 December 11, 2011 passed 574 weeks ago
Week 50 December 12, 2011 December 18, 2011 passed 573 weeks ago
Week 51 December 19, 2011 December 25, 2011 passed 572 weeks ago
Week 52 December 26, 2011 January 1, 2012 passed 571 weeks ago