Week 2, 2027
January 11–17, 2027
Monday January 11 – Sunday January 172027-W02Days 11–17
The seven days
| Date | ISO week date | Day of year | US week | Islamic date (computed) | Holidays and other dates |
|---|---|---|---|---|---|
| Mon, Jan 11 | 2027-W02-1 | 011 | 3 | 3 Sha'ban 1448 AH | Coming of Age Day (Japan) |
| Tue, Jan 12 | 2027-W02-2 | 012 | 3 | 4 Sha'ban 1448 AH | |
| Wed, Jan 13 | 2027-W02-3 | 013 | 3 | 5 Sha'ban 1448 AH | |
| Thu, Jan 14 | 2027-W02-4 | 014 | 3 | 6 Sha'ban 1448 AH | |
| Fri, Jan 15 | 2027-W02-5 | 015 | 3 | 7 Sha'ban 1448 AH | |
| Sat, Jan 16 | 2027-W02-6 | 016 | 3 | 8 Sha'ban 1448 AH | |
| Sun, Jan 17 | 2027-W02-7 | 017 | 4 | 9 Sha'ban 1448 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 3 and Sunday US week 4.
Holidays this week: Coming of Age Day on Mon, Jan 11 in Japan. All weeks of 2027 lists the neighbouring weeks.
Week 2 in other years
| Year | Week 2 runs |
|---|---|
| 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 |
| 2030 | Mon, Jan 7 – Sun, Jan 13 |
In 2028, week 2 runs Mon, Jan 10 – Sun, Jan 16: 364 days later, 1 day earlier 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, 17 days of 2027 have passed (4.7% of the year), and 50 ISO weeks of 2027 remain. The week falls in Q1.
Writing week 2
ISO 8601 writes this week as 2027-W02 (basic format 2027W02), from 2027-W02-1 on Monday to -7 on Sunday. The week number page shows the spreadsheet and Python formulas that give these numbers.