Week Numbers 1991 in Brazil
Number of weeks in 1991 year is 52 weeks
Weeks are according Brazil calendar rules, Sunday first day and weeks are Sunday to Saturday
| Week # | From Date | To Date | Weeks from Now |
|---|---|---|---|
| Week 1 | December 30, 1990 | January 5, 1991 | passed 1834 weeks ago |
| Week 2 | January 6, 1991 | January 12, 1991 | passed 1833 weeks ago |
| Week 3 | January 13, 1991 | January 19, 1991 | passed 1832 weeks ago |
| Week 4 | January 20, 1991 | January 26, 1991 | passed 1831 weeks ago |
| Week 5 | January 27, 1991 | February 2, 1991 | passed 1830 weeks ago |
| Week 6 | February 3, 1991 | February 9, 1991 | passed 1829 weeks ago |
| Week 7 | February 10, 1991 | February 16, 1991 | passed 1828 weeks ago |
| Week 8 | February 17, 1991 | February 23, 1991 | passed 1827 weeks ago |
| Week 9 | February 24, 1991 | March 2, 1991 | passed 1826 weeks ago |
| Week 10 | March 3, 1991 | March 9, 1991 | passed 1825 weeks ago |
| Week 11 | March 10, 1991 | March 16, 1991 | passed 1824 weeks ago |
| Week 12 | March 17, 1991 | March 23, 1991 | passed 1823 weeks ago |
| Week 13 | March 24, 1991 | March 30, 1991 | passed 1822 weeks ago |
| Week 14 | March 31, 1991 | April 6, 1991 | passed 1821 weeks ago |
| Week 15 | April 7, 1991 | April 13, 1991 | passed 1820 weeks ago |
| Week 16 | April 14, 1991 | April 20, 1991 | passed 1819 weeks ago |
| Week 17 | April 21, 1991 | April 27, 1991 | passed 1818 weeks ago |
| Week 18 | April 28, 1991 | May 4, 1991 | passed 1817 weeks ago |
| Week 19 | May 5, 1991 | May 11, 1991 | passed 1816 weeks ago |
| Week 20 | May 12, 1991 | May 18, 1991 | passed 1815 weeks ago |
| Week 21 | May 19, 1991 | May 25, 1991 | passed 1814 weeks ago |
| Week 22 | May 26, 1991 | June 1, 1991 | passed 1813 weeks ago |
| Week 23 | June 2, 1991 | June 8, 1991 | passed 1812 weeks ago |
| Week 24 | June 9, 1991 | June 15, 1991 | passed 1811 weeks ago |
| Week 25 | June 16, 1991 | June 22, 1991 | passed 1810 weeks ago |
| Week 26 | June 23, 1991 | June 29, 1991 | passed 1809 weeks ago |
| Week 27 | June 30, 1991 | July 6, 1991 | passed 1808 weeks ago |
| Week 28 | July 7, 1991 | July 13, 1991 | passed 1807 weeks ago |
| Week 29 | July 14, 1991 | July 20, 1991 | passed 1806 weeks ago |
| Week 30 | July 21, 1991 | July 27, 1991 | passed 1805 weeks ago |
| Week 31 | July 28, 1991 | August 3, 1991 | passed 1804 weeks ago |
| Week 32 | August 4, 1991 | August 10, 1991 | passed 1803 weeks ago |
| Week 33 | August 11, 1991 | August 17, 1991 | passed 1802 weeks ago |
| Week 34 | August 18, 1991 | August 24, 1991 | passed 1801 weeks ago |
| Week 35 | August 25, 1991 | August 31, 1991 | passed 1800 weeks ago |
| Week 36 | September 1, 1991 | September 7, 1991 | passed 1799 weeks ago |
| Week 37 | September 8, 1991 | September 14, 1991 | passed 1798 weeks ago |
| Week 38 | September 15, 1991 | September 21, 1991 | passed 1797 weeks ago |
| Week 39 | September 22, 1991 | September 28, 1991 | passed 1796 weeks ago |
| Week 40 | September 29, 1991 | October 5, 1991 | passed 1795 weeks ago |
| Week 41 | October 6, 1991 | October 12, 1991 | passed 1794 weeks ago |
| Week 42 | October 13, 1991 | October 19, 1991 | passed 1793 weeks ago |
| Week 43 | October 20, 1991 | October 26, 1991 | passed 1792 weeks ago |
| Week 44 | October 27, 1991 | November 2, 1991 | passed 1791 weeks ago |
| Week 45 | November 3, 1991 | November 9, 1991 | passed 1790 weeks ago |
| Week 46 | November 10, 1991 | November 16, 1991 | passed 1789 weeks ago |
| Week 47 | November 17, 1991 | November 23, 1991 | passed 1788 weeks ago |
| Week 48 | November 24, 1991 | November 30, 1991 | passed 1787 weeks ago |
| Week 49 | December 1, 1991 | December 7, 1991 | passed 1786 weeks ago |
| Week 50 | December 8, 1991 | December 14, 1991 | passed 1785 weeks ago |
| Week 51 | December 15, 1991 | December 21, 1991 | passed 1784 weeks ago |
| Week 52 | December 22, 1991 | December 28, 1991 | passed 1783 weeks ago |