Odd and even weeks in 2026
2026 has 53 weeks: 26 even and 27 odd. Week numbers follow ISO 8601 (Monday to Sunday).
Watch out: 2026 has 53 weeks. Week 53 and week 1 of 2027 are both odd, so an every-other-week schedule based on odd and even week numbers breaks at the turn of the year.
| Wk | Start date | End date | Type |
|---|---|---|---|
| Wk 1 | Dec 29 | Jan 4 | odd week |
| Wk 2 | Jan 5 | Jan 11 | even week |
| Wk 3 | Jan 12 | Jan 18 | odd week |
| Wk 4 | Jan 19 | Jan 25 | even week |
| Wk 5 | Jan 26 | Feb 1 | odd week |
| Wk 6 | Feb 2 | Feb 8 | even week |
| Wk 7 | Feb 9 | Feb 15 | odd week |
| Wk 8 | Feb 16 | Feb 22 | even week |
| Wk 9 | Feb 23 | Mar 1 | odd week |
| Wk 10 | Mar 2 | Mar 8 | even week |
| Wk 11 | Mar 9 | Mar 15 | odd week |
| Wk 12 | Mar 16 | Mar 22 | even week |
| Wk 13 | Mar 23 | Mar 29 | odd week |
| Wk 14 | Mar 30 | Apr 5 | even week |
| Wk 15 | Apr 6 | Apr 12 | odd week |
| Wk 16 | Apr 13 | Apr 19 | even week |
| Wk 17 | Apr 20 | Apr 26 | odd week |
| Wk 18 | Apr 27 | May 3 | even week |
| Wk 19 | May 4 | May 10 | odd week |
| Wk 20 | May 11 | May 17 | even week |
| Wk 21 | May 18 | May 24 | odd week |
| Wk 22 | May 25 | May 31 | even week |
| Wk 23 | Jun 1 | Jun 7 | odd week |
| Wk 24 | Jun 8 | Jun 14 | even week |
| Wk 25 | Jun 15 | Jun 21 | odd week |
| Wk 26 | Jun 22 | Jun 28 | even week |
| Wk 27 | Jun 29 | Jul 5 | odd week |
| Wk 28 | Jul 6 | Jul 12 | even week |
| Wk 29 | Jul 13 | Jul 19 | odd week |
| Wk 30 | Jul 20 | Jul 26 | even week |
| Wk 31 | Jul 27 | Aug 2 | odd week |
| Wk 32 | Aug 3 | Aug 9 | even week |
| Wk 33 | Aug 10 | Aug 16 | odd week |
| Wk 34 | Aug 17 | Aug 23 | even week |
| Wk 35 | Aug 24 | Aug 30 | odd week |
| Wk 36 | Aug 31 | Sep 6 | even week |
| Wk 37 | Sep 7 | Sep 13 | odd week |
| Wk 38 | Sep 14 | Sep 20 | even week |
| Wk 39 | Sep 21 | Sep 27 | odd week |
| Wk 40 | Sep 28 | Oct 4 | even week |
| Wk 41 | Oct 5 | Oct 11 | odd week |
| Wk 42 | Oct 12 | Oct 18 | even week |
| Wk 43 | Oct 19 | Oct 25 | odd week |
| Wk 44 | Oct 26 | Nov 1 | even week |
| Wk 45 | Nov 2 | Nov 8 | odd week |
| Wk 46 | Nov 9 | Nov 15 | even week |
| Wk 47 | Nov 16 | Nov 22 | odd week |
| Wk 48 | Nov 23 | Nov 29 | even week |
| Wk 49 | Nov 30 | Dec 6 | odd week |
| Wk 50 | Dec 7 | Dec 13 | even week |
| Wk 51 | Dec 14 | Dec 20 | odd week |
| Wk 52 | Dec 21 | Dec 27 | even week |
| Wk 53 | Dec 28 | Jan 3 | odd week |