Odd Sunday in 2021, Ireland
| week 53 | January 3, 2021 |
| week 1 | January 10, 2021 |
| week 3 | January 24, 2021 |
| week 5 | February 7, 2021 |
| week 7 | February 21, 2021 |
| week 9 | March 7, 2021 |
| week 11 | March 21, 2021 |
| week 13 | April 4, 2021 |
| week 15 | April 18, 2021 |
| week 17 | May 2, 2021 |
| week 19 | May 16, 2021 |
| week 21 | May 30, 2021 |
| week 23 | June 13, 2021 |
| week 25 | June 27, 2021 |
| week 27 | July 11, 2021 |
| week 29 | July 25, 2021 |
| week 31 | August 8, 2021 |
| week 33 | August 22, 2021 |
| week 35 | September 5, 2021 |
| week 37 | September 19, 2021 |
| week 39 | October 3, 2021 |
| week 41 | October 17, 2021 |
| week 43 | October 31, 2021 |
| week 45 | November 14, 2021 |
| week 47 | November 28, 2021 |
| week 49 | December 12, 2021 |
| week 51 | December 26, 2021 |
Even: even Monday 2021, even Tuesday 2021, even Wednesday 2021, even Thursday 2021, even Friday 2021, even Saturday 2021, even Sunday 2021
Odd: odd Monday 2021, odd Tuesday 2021, odd Wednesday 2021, odd Thursday 2021, odd Friday 2021, odd Saturday 2021, odd Sunday 2021