Week 41, 2026
October 5–11, 2026
Monday October 5 – Sunday October 112026-W41Days 278–284
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Oct 5 | 2026-W41-1 | 278 | 41 | 24 Rabi' al-Thani 1448 AH | Labour Day (Australia: New South Wales); King's Birthday (Australia: Queensland) |
| Tue, Oct 6 | 2026-W41-2 | 279 | 41 | 25 Rabi' al-Thani 1448 AH | |
| Wed, Oct 7 | 2026-W41-3 | 280 | 41 | 26 Rabi' al-Thani 1448 AH | |
| Thu, Oct 8 | 2026-W41-4 | 281 | 41 | 27 Rabi' al-Thani 1448 AH | |
| Fri, Oct 9 | 2026-W41-5 | 282 | 41 | 28 Rabi' al-Thani 1448 AH | |
| Sat, Oct 10 | 2026-W41-6 | 283 | 41 | 29 Rabi' al-Thani 1448 AH | |
| Sun, Oct 11 | 2026-W41-7 | 284 | 42 | 30 Rabi' al-Thani 1448 AH |
About week 41
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 41 and Sunday US week 42.
Holidays this week: Labour Day on Mon, Oct 5 in Australia: New South Wales; King's Birthday on Mon, Oct 5 in Australia: Queensland. All weeks of 2026 lists the neighbouring weeks.
Week 41 in other years
| Year | Week 41 runs |
|---|---|
| 2024 | Mon, Oct 7 – Sun, Oct 13 |
| 2025 | Mon, Oct 6 – Sun, Oct 12 |
| 2026 | Mon, Oct 5 – Sun, Oct 11 |
| 2027 | Mon, Oct 11 – Sun, Oct 17 |
| 2028 | Mon, Oct 9 – Sun, Oct 15 |
| 2029 | Mon, Oct 8 – Sun, Oct 14 |
In 2027, week 41 runs Mon, Oct 11 – Sun, Oct 17: 2026 has 53 weeks, so the same number comes 371 days later, 6 days later in the calendar. Over the 400-year cycle, the Monday of week 41 falls between October 4 and October 11.
By the end of week 41, 284 days of 2026 have passed (77.8% of the year), and 12 ISO weeks of 2026 remain. The week falls in Q4.
Writing week 41
ISO 8601 writes this week as 2026-W41 (basic format 2026W41), from 2026-W41-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.