Week 2, 2026
January 5–11, 2026
Monday January 5 – Sunday January 112026-W02Days 5–11
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Jan 5 | 2026-W02-1 | 005 | 2 | 16 Rajab 1447 AH | |
| Tue, Jan 6 | 2026-W02-2 | 006 | 2 | 17 Rajab 1447 AH | Epiphany (Spain) |
| Wed, Jan 7 | 2026-W02-3 | 007 | 2 | 18 Rajab 1447 AH | |
| Thu, Jan 8 | 2026-W02-4 | 008 | 2 | 19 Rajab 1447 AH | |
| Fri, Jan 9 | 2026-W02-5 | 009 | 2 | 20 Rajab 1447 AH | |
| Sat, Jan 10 | 2026-W02-6 | 010 | 2 | 21 Rajab 1447 AH | |
| Sun, Jan 11 | 2026-W02-7 | 011 | 3 | 22 Rajab 1447 AH |
About week 2
In US numbering, where weeks start on Sunday and the week of January 1 is week 1, Monday to Saturday are US week 2 and Sunday US week 3.
Holidays this week: Epiphany on Tue, Jan 6 in Spain. All weeks of 2026 lists the neighbouring weeks.
Week 2 in other years
| Year | Week 2 runs |
|---|---|
| 2024 | Mon, Jan 8 – Sun, Jan 14 |
| 2025 | Mon, Jan 6 – Sun, Jan 12 |
| 2026 | Mon, Jan 5 – Sun, Jan 11 |
| 2027 | Mon, Jan 11 – Sun, Jan 17 |
| 2028 | Mon, Jan 10 – Sun, Jan 16 |
| 2029 | Mon, Jan 8 – Sun, Jan 14 |
In 2027, week 2 runs Mon, Jan 11 – Sun, Jan 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 2 falls between January 5 and January 11.
By the end of week 2, 11 days of 2026 have passed (3.0% of the year), and 51 ISO weeks of 2026 remain. The week falls in Q1.
Writing week 2
ISO 8601 writes this week as 2026-W02 (basic format 2026W02), from 2026-W02-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.