Week Numbers 1966 in Brazil
Number of weeks in 1966 year is 53 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 26, 1965 | January 1, 1966 | passed 3072 weeks ago |
| Week 2 | January 2, 1966 | January 8, 1966 | passed 3071 weeks ago |
| Week 3 | January 9, 1966 | January 15, 1966 | passed 3070 weeks ago |
| Week 4 | January 16, 1966 | January 22, 1966 | passed 3069 weeks ago |
| Week 5 | January 23, 1966 | January 29, 1966 | passed 3068 weeks ago |
| Week 6 | January 30, 1966 | February 5, 1966 | passed 3067 weeks ago |
| Week 7 | February 6, 1966 | February 12, 1966 | passed 3066 weeks ago |
| Week 8 | February 13, 1966 | February 19, 1966 | passed 3065 weeks ago |
| Week 9 | February 20, 1966 | February 26, 1966 | passed 3064 weeks ago |
| Week 10 | February 27, 1966 | March 5, 1966 | passed 3063 weeks ago |
| Week 11 | March 6, 1966 | March 12, 1966 | passed 3062 weeks ago |
| Week 12 | March 13, 1966 | March 19, 1966 | passed 3061 weeks ago |
| Week 13 | March 20, 1966 | March 26, 1966 | passed 3060 weeks ago |
| Week 14 | March 27, 1966 | April 2, 1966 | passed 3059 weeks ago |
| Week 15 | April 3, 1966 | April 9, 1966 | passed 3058 weeks ago |
| Week 16 | April 10, 1966 | April 16, 1966 | passed 3057 weeks ago |
| Week 17 | April 17, 1966 | April 23, 1966 | passed 3056 weeks ago |
| Week 18 | April 24, 1966 | April 30, 1966 | passed 3055 weeks ago |
| Week 19 | May 1, 1966 | May 7, 1966 | passed 3054 weeks ago |
| Week 20 | May 8, 1966 | May 14, 1966 | passed 3053 weeks ago |
| Week 21 | May 15, 1966 | May 21, 1966 | passed 3052 weeks ago |
| Week 22 | May 22, 1966 | May 28, 1966 | passed 3051 weeks ago |
| Week 23 | May 29, 1966 | June 4, 1966 | passed 3050 weeks ago |
| Week 24 | June 5, 1966 | June 11, 1966 | passed 3049 weeks ago |
| Week 25 | June 12, 1966 | June 18, 1966 | passed 3048 weeks ago |
| Week 26 | June 19, 1966 | June 25, 1966 | passed 3047 weeks ago |
| Week 27 | June 26, 1966 | July 2, 1966 | passed 3046 weeks ago |
| Week 28 | July 3, 1966 | July 9, 1966 | passed 3045 weeks ago |
| Week 29 | July 10, 1966 | July 16, 1966 | passed 3044 weeks ago |
| Week 30 | July 17, 1966 | July 23, 1966 | passed 3043 weeks ago |
| Week 31 | July 24, 1966 | July 30, 1966 | passed 3042 weeks ago |
| Week 32 | July 31, 1966 | August 6, 1966 | passed 3041 weeks ago |
| Week 33 | August 7, 1966 | August 13, 1966 | passed 3040 weeks ago |
| Week 34 | August 14, 1966 | August 20, 1966 | passed 3039 weeks ago |
| Week 35 | August 21, 1966 | August 27, 1966 | passed 3038 weeks ago |
| Week 36 | August 28, 1966 | September 3, 1966 | passed 3037 weeks ago |
| Week 37 | September 4, 1966 | September 10, 1966 | passed 3036 weeks ago |
| Week 38 | September 11, 1966 | September 17, 1966 | passed 3035 weeks ago |
| Week 39 | September 18, 1966 | September 24, 1966 | passed 3034 weeks ago |
| Week 40 | September 25, 1966 | October 1, 1966 | passed 3033 weeks ago |
| Week 41 | October 2, 1966 | October 8, 1966 | passed 3032 weeks ago |
| Week 42 | October 9, 1966 | October 15, 1966 | passed 3031 weeks ago |
| Week 43 | October 16, 1966 | October 22, 1966 | passed 3030 weeks ago |
| Week 44 | October 23, 1966 | October 29, 1966 | passed 3029 weeks ago |
| Week 45 | October 30, 1966 | November 5, 1966 | passed 3028 weeks ago |
| Week 46 | November 6, 1966 | November 12, 1966 | passed 3027 weeks ago |
| Week 47 | November 13, 1966 | November 19, 1966 | passed 3026 weeks ago |
| Week 48 | November 20, 1966 | November 26, 1966 | passed 3025 weeks ago |
| Week 49 | November 27, 1966 | December 3, 1966 | passed 3024 weeks ago |
| Week 50 | December 4, 1966 | December 10, 1966 | passed 3023 weeks ago |
| Week 51 | December 11, 1966 | December 17, 1966 | passed 3022 weeks ago |
| Week 52 | December 18, 1966 | December 24, 1966 | passed 3021 weeks ago |
| Week 53 | December 25, 1966 | December 31, 1966 | passed 3020 weeks ago |