Week 45, 2026
November 2–8, 2026
Monday November 2 – Sunday November 82026-W45Days 306–312
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Nov 2 | 2026-W45-1 | 306 | 45 | 22 Jumada al-Ula 1448 AH | |
| Tue, Nov 3 | 2026-W45-2 | 307 | 45 | 23 Jumada al-Ula 1448 AH | Culture Day (Japan) |
| Wed, Nov 4 | 2026-W45-3 | 308 | 45 | 24 Jumada al-Ula 1448 AH | |
| Thu, Nov 5 | 2026-W45-4 | 309 | 45 | 25 Jumada al-Ula 1448 AH | |
| Fri, Nov 6 | 2026-W45-5 | 310 | 45 | 26 Jumada al-Ula 1448 AH | |
| Sat, Nov 7 | 2026-W45-6 | 311 | 45 | 27 Jumada al-Ula 1448 AH | |
| Sun, Nov 8 | 2026-W45-7 | 312 | 46 | 28 Jumada al-Ula 1448 AH |
About week 45
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 45 and Sunday US week 46.
Holidays this week: Culture Day on Tue, Nov 3 in Japan. All weeks of 2026 lists the neighbouring weeks.
Week 45 in other years
| Year | Week 45 runs |
|---|---|
| 2024 | Mon, Nov 4 – Sun, Nov 10 |
| 2025 | Mon, Nov 3 – Sun, Nov 9 |
| 2026 | Mon, Nov 2 – Sun, Nov 8 |
| 2027 | Mon, Nov 8 – Sun, Nov 14 |
| 2028 | Mon, Nov 6 – Sun, Nov 12 |
| 2029 | Mon, Nov 5 – Sun, Nov 11 |
In 2027, week 45 runs Mon, Nov 8 – Sun, Nov 14: 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 45 falls between November 1 and November 8.
By the end of week 45, 312 days of 2026 have passed (85.5% of the year), and 8 ISO weeks of 2026 remain. The week falls in Q4.
Writing week 45
ISO 8601 writes this week as 2026-W45 (basic format 2026W45), from 2026-W45-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.