Week Numbers 2021 in United States
Number of weeks in 2021 year is 53 weeks
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 | December 27, 2020 | January 2, 2021 | 5 weeks left |
| Week 2 | January 3, 2021 | January 9, 2021 | 6 weeks left |
| Week 3 | January 10, 2021 | January 16, 2021 | 7 weeks left |
| Week 4 | January 17, 2021 | January 23, 2021 | 8 weeks left |
| Week 5 | January 24, 2021 | January 30, 2021 | 9 weeks left |
| Week 6 | January 31, 2021 | February 6, 2021 | 10 weeks left |
| Week 7 | February 7, 2021 | February 13, 2021 | 11 weeks left |
| Week 8 | February 14, 2021 | February 20, 2021 | 12 weeks left |
| Week 9 | February 21, 2021 | February 27, 2021 | 13 weeks left |
| Week 10 | February 28, 2021 | March 6, 2021 | 14 weeks left |
| Week 11 | March 7, 2021 | March 13, 2021 | 15 weeks left |
| Week 12 | March 14, 2021 | March 20, 2021 | 16 weeks left |
| Week 13 | March 21, 2021 | March 27, 2021 | 17 weeks left |
| Week 14 | March 28, 2021 | April 3, 2021 | 18 weeks left |
| Week 15 | April 4, 2021 | April 10, 2021 | 19 weeks left |
| Week 16 | April 11, 2021 | April 17, 2021 | 20 weeks left |
| Week 17 | April 18, 2021 | April 24, 2021 | 21 weeks left |
| Week 18 | April 25, 2021 | May 1, 2021 | 22 weeks left |
| Week 19 | May 2, 2021 | May 8, 2021 | 23 weeks left |
| Week 20 | May 9, 2021 | May 15, 2021 | 24 weeks left |
| Week 21 | May 16, 2021 | May 22, 2021 | 25 weeks left |
| Week 22 | May 23, 2021 | May 29, 2021 | 26 weeks left |
| Week 23 | May 30, 2021 | June 5, 2021 | 27 weeks left |
| Week 24 | June 6, 2021 | June 12, 2021 | 28 weeks left |
| Week 25 | June 13, 2021 | June 19, 2021 | 29 weeks left |
| Week 26 | June 20, 2021 | June 26, 2021 | 30 weeks left |
| Week 27 | June 27, 2021 | July 3, 2021 | 31 weeks left |
| Week 28 | July 4, 2021 | July 10, 2021 | 32 weeks left |
| Week 29 | July 11, 2021 | July 17, 2021 | 33 weeks left |
| Week 30 | July 18, 2021 | July 24, 2021 | 34 weeks left |
| Week 31 | July 25, 2021 | July 31, 2021 | 35 weeks left |
| Week 32 | August 1, 2021 | August 7, 2021 | 36 weeks left |
| Week 33 | August 8, 2021 | August 14, 2021 | 37 weeks left |
| Week 34 | August 15, 2021 | August 21, 2021 | 38 weeks left |
| Week 35 | August 22, 2021 | August 28, 2021 | 39 weeks left |
| Week 36 | August 29, 2021 | September 4, 2021 | 40 weeks left |
| Week 37 | September 5, 2021 | September 11, 2021 | 41 weeks left |
| Week 38 | September 12, 2021 | September 18, 2021 | 42 weeks left |
| Week 39 | September 19, 2021 | September 25, 2021 | 43 weeks left |
| Week 40 | September 26, 2021 | October 2, 2021 | 44 weeks left |
| Week 41 | October 3, 2021 | October 9, 2021 | 45 weeks left |
| Week 42 | October 10, 2021 | October 16, 2021 | 46 weeks left |
| Week 43 | October 17, 2021 | October 23, 2021 | 47 weeks left |
| Week 44 | October 24, 2021 | October 30, 2021 | 48 weeks left |
| Week 45 | October 31, 2021 | November 6, 2021 | 49 weeks left |
| Week 46 | November 7, 2021 | November 13, 2021 | 50 weeks left |
| Week 47 | November 14, 2021 | November 20, 2021 | 51 weeks left |
| Week 48 | November 21, 2021 | November 27, 2021 | 52 weeks left |
| Week 49 | November 28, 2021 | December 4, 2021 | 53 weeks left |
| Week 50 | December 5, 2021 | December 11, 2021 | 54 weeks left |
| Week 51 | December 12, 2021 | December 18, 2021 | 55 weeks left |
| Week 52 | December 19, 2021 | December 25, 2021 | 56 weeks left |
| Week 53 | December 26, 2021 | January 1, 2022 | 57 weeks left |