Week 11, 2026
March 9–15, 2026
Monday March 9 – Sunday March 152026-W11Days 68–74
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Mar 9 | 2026-W11-1 | 068 | 11 | 20 Ramadan 1447 AH | |
| Tue, Mar 10 | 2026-W11-2 | 069 | 11 | 21 Ramadan 1447 AH | |
| Wed, Mar 11 | 2026-W11-3 | 070 | 11 | 22 Ramadan 1447 AH | |
| Thu, Mar 12 | 2026-W11-4 | 071 | 11 | 23 Ramadan 1447 AH | |
| Fri, Mar 13 | 2026-W11-5 | 072 | 11 | 24 Ramadan 1447 AH | |
| Sat, Mar 14 | 2026-W11-6 | 073 | 11 | 25 Ramadan 1447 AH | |
| Sun, Mar 15 | 2026-W11-7 | 074 | 12 | 26 Ramadan 1447 AH | Mothering Sunday (UK and Ireland) |
About week 11
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 11 and Sunday US week 12.
None of the 17 national holiday sets we cover has a public holiday in this week; regional holidays are on the country pages. Also this week: Mothering Sunday (UK and Ireland) on Sun, Mar 15 (three weeks before Easter Sunday). All weeks of 2026 lists the neighbouring weeks.
Week 11 in other years
| Year | Week 11 runs |
|---|---|
| 2024 | Mon, Mar 11 – Sun, Mar 17 |
| 2025 | Mon, Mar 10 – Sun, Mar 16 |
| 2026 | Mon, Mar 9 – Sun, Mar 15 |
| 2027 | Mon, Mar 15 – Sun, Mar 21 |
| 2028 | Mon, Mar 13 – Sun, Mar 19 |
| 2029 | Mon, Mar 12 – Sun, Mar 18 |
In 2027, week 11 runs Mon, Mar 15 – Sun, Mar 21: 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 11 falls between March 8 and March 15.
By the end of week 11, 74 days of 2026 have passed (20.3% of the year), and 42 ISO weeks of 2026 remain. The week falls in Q1.
Writing week 11
ISO 8601 writes this week as 2026-W11 (basic format 2026W11), from 2026-W11-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.