Week Numbers 2021 in United States
Number of weeks in 2021 year is 52 weeks
42 weeks passed
in 2021 year excluding current week #43
9 weeks left
in 2021 year, until next 2022 year starts, excluding current week #43
Weeks are according United States calendar rules, Sunday first day and weeks are Sunday to Saturday
| Week # | From Date | To Date | Weeks from Now | |
|---|---|---|---|---|
| Week 1 | January 3, 2021 | January 9, 2021 | passed 42 weeks ago | |
| Week 2 | January 10, 2021 | January 16, 2021 | passed 41 weeks ago | |
| Week 3 | January 17, 2021 | January 23, 2021 | passed 40 weeks ago | |
| Week 4 | January 24, 2021 | January 30, 2021 | passed 39 weeks ago | |
| Week 5 | January 31, 2021 | February 6, 2021 | passed 38 weeks ago | |
| Week 6 | February 7, 2021 | February 13, 2021 | passed 37 weeks ago | |
| Week 7 | February 14, 2021 | February 20, 2021 | passed 36 weeks ago | |
| Week 8 | February 21, 2021 | February 27, 2021 | passed 35 weeks ago | |
| Week 9 | February 28, 2021 | March 6, 2021 | passed 34 weeks ago | |
| Week 10 | March 7, 2021 | March 13, 2021 | passed 33 weeks ago | |
| Week 11 | March 14, 2021 | March 20, 2021 | passed 32 weeks ago | |
| Week 12 | March 21, 2021 | March 27, 2021 | passed 31 weeks ago | |
| Week 13 | March 28, 2021 | April 3, 2021 | passed 30 weeks ago | |
| Week 14 | April 4, 2021 | April 10, 2021 | passed 29 weeks ago | |
| Week 15 | April 11, 2021 | April 17, 2021 | passed 28 weeks ago | |
| Week 16 | April 18, 2021 | April 24, 2021 | passed 27 weeks ago | |
| Week 17 | April 25, 2021 | May 1, 2021 | passed 26 weeks ago | |
| Week 18 | May 2, 2021 | May 8, 2021 | passed 25 weeks ago | |
| Week 19 | May 9, 2021 | May 15, 2021 | passed 24 weeks ago | |
| Week 20 | May 16, 2021 | May 22, 2021 | passed 23 weeks ago | |
| Week 21 | May 23, 2021 | May 29, 2021 | passed 22 weeks ago | |
| Week 22 | May 30, 2021 | June 5, 2021 | passed 21 weeks ago | |
| Week 23 | June 6, 2021 | June 12, 2021 | passed 20 weeks ago | |
| Week 24 | June 13, 2021 | June 19, 2021 | passed 19 weeks ago | |
| Week 25 | June 20, 2021 | June 26, 2021 | passed 18 weeks ago | |
| Week 26 | June 27, 2021 | July 3, 2021 | passed 17 weeks ago | |
| Week 27 | July 4, 2021 | July 10, 2021 | passed 16 weeks ago | |
| Week 28 | July 11, 2021 | July 17, 2021 | passed 15 weeks ago | |
| Week 29 | July 18, 2021 | July 24, 2021 | passed 14 weeks ago | |
| Week 30 | July 25, 2021 | July 31, 2021 | passed 13 weeks ago | |
| Week 31 | August 1, 2021 | August 7, 2021 | passed 12 weeks ago | |
| Week 32 | August 8, 2021 | August 14, 2021 | passed 11 weeks ago | |
| Week 33 | August 15, 2021 | August 21, 2021 | passed 10 weeks ago | |
| Week 34 | August 22, 2021 | August 28, 2021 | passed 9 weeks ago | |
| Week 35 | August 29, 2021 | September 4, 2021 | passed 8 weeks ago | |
| Week 36 | September 5, 2021 | September 11, 2021 | passed 7 weeks ago | |
| Week 37 | September 12, 2021 | September 18, 2021 | passed 6 weeks ago | |
| Week 38 | September 19, 2021 | September 25, 2021 | passed 5 weeks ago | |
| Week 39 | September 26, 2021 | October 2, 2021 | passed 4 weeks ago | |
| Week 40 | October 3, 2021 | October 9, 2021 | passed 3 weeks ago | |
| Week 41 | October 10, 2021 | October 16, 2021 | passed 2 weeks ago | |
| Week 42 | October 17, 2021 | October 23, 2021 | passed 1 week ago | |
| Week 43 | October 24, 2021 | October 30, 2021 | Current Week | |
| Week 44 | October 31, 2021 | November 6, 2021 | 1 week left | |
| Week 45 | November 7, 2021 | November 13, 2021 | 2 weeks left | |
| Week 46 | November 14, 2021 | November 20, 2021 | 3 weeks left | |
| Week 47 | November 21, 2021 | November 27, 2021 | 4 weeks left | |
| Week 48 | November 28, 2021 | December 4, 2021 | 5 weeks left | |
| Week 49 | December 5, 2021 | December 11, 2021 | 6 weeks left | |
| Week 50 | December 12, 2021 | December 18, 2021 | 7 weeks left | |
| Week 51 | December 19, 2021 | December 25, 2021 | 8 weeks left | |
| Week 52 | December 26, 2021 | January 1, 2022 | 9 weeks left |