Week 33, 2026
August 10–16, 2026
Monday August 10 – Sunday August 162026-W33Days 222–228
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Aug 10 | 2026-W33-1 | 222 | 33 | 27 Safar 1448 AH | National Women's Day (substitute day) (South Africa); National Day (substitute day) (Singapore) |
| Tue, Aug 11 | 2026-W33-2 | 223 | 33 | 28 Safar 1448 AH | Mountain Day (Japan) |
| Wed, Aug 12 | 2026-W33-3 | 224 | 33 | 29 Safar 1448 AH | Royal Queensland Show (Brisbane area only) (Australia: Queensland) |
| Thu, Aug 13 | 2026-W33-4 | 225 | 33 | 30 Safar 1448 AH | |
| Fri, Aug 14 | 2026-W33-5 | 226 | 33 | 1 Rabi' al-Awwal 1448 AH | |
| Sat, Aug 15 | 2026-W33-6 | 227 | 33 | 2 Rabi' al-Awwal 1448 AH | Assumption Day (France, Spain) |
| Sun, Aug 16 | 2026-W33-7 | 228 | 34 | 3 Rabi' al-Awwal 1448 AH |
About week 33
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 33 and Sunday US week 34.
Holidays this week: National Women's Day (substitute day) on Mon, Aug 10 in South Africa; National Day (substitute day) on Mon, Aug 10 in Singapore; Mountain Day on Tue, Aug 11 in Japan; Royal Queensland Show (Brisbane area only) on Wed, Aug 12 in Australia: Queensland; Assumption Day on Sat, Aug 15 in France, Spain. 1 Rabi' al-Awwal 1448 AH falls on Fri, Aug 14 by the Umm al-Qura calendar (computed). All weeks of 2026 lists the neighbouring weeks.
Week 33 in other years
| Year | Week 33 runs |
|---|---|
| 2024 | Mon, Aug 12 – Sun, Aug 18 |
| 2025 | Mon, Aug 11 – Sun, Aug 17 |
| 2026 | Mon, Aug 10 – Sun, Aug 16 |
| 2027 | Mon, Aug 16 – Sun, Aug 22 |
| 2028 | Mon, Aug 14 – Sun, Aug 20 |
| 2029 | Mon, Aug 13 – Sun, Aug 19 |
In 2027, week 33 runs Mon, Aug 16 – Sun, Aug 22: 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 33 falls between August 9 and August 16.
By the end of week 33, 228 days of 2026 have passed (62.5% of the year), and 20 ISO weeks of 2026 remain. The week falls in Q3.
Writing week 33
ISO 8601 writes this week as 2026-W33 (basic format 2026W33), from 2026-W33-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.