Week 5 2026: Jan 26 – Feb 1
When is week 5? The exact Monday–Sunday dates of ISO week 5 for every year from 2024 to 2032.
Week 5 of 2026 runs from Monday, Jan 26, 2026 to Sunday, Feb 1, 2026 (Jan / Feb). In 2027, week 5 runs from Monday, Feb 1, 2027 to Sunday, Feb 7, 2027. ISO week code: 2026-W05.
The seven days of week 5
| Date | ISO week date | Day of year | Holidays |
|---|---|---|---|
| Monday, January 26, 2026 | 2026-W05-1 | 26 | — |
| Tuesday, January 27, 2026 | 2026-W05-2 | 27 | — |
| Wednesday, January 28, 2026 | 2026-W05-3 | 28 | — |
| Thursday, January 29, 2026 | 2026-W05-4 | 29 | — |
| Friday, January 30, 2026 | 2026-W05-5 | 30 | — |
| Saturday, January 31, 2026 | 2026-W05-6 | 31 | — |
| Sunday, February 1, 2026 | 2026-W05-7 | 32 | — |
Day-of-year numbers and common US and international holidays. Weekday digits in the ISO week date run 1 (Monday) to 7 (Sunday).
Week 5 dates by year
| Year | Week 5 starts (Mon) | Week 5 ends (Sun) | Month |
|---|---|---|---|
| 2024 | Monday, January 29, 2024 | Sunday, February 4, 2024 | Jan / Feb |
| 2025 | Monday, January 27, 2025 | Sunday, February 2, 2025 | Jan / Feb |
| 2026 | Monday, January 26, 2026 | Sunday, February 1, 2026 | Jan / Feb |
| 2027 | Monday, February 1, 2027 | Sunday, February 7, 2027 | February |
| 2028 | Monday, January 31, 2028 | Sunday, February 6, 2028 | Jan / Feb |
| 2029 | Monday, January 29, 2029 | Sunday, February 4, 2029 | Jan / Feb |
| 2030 | Monday, January 28, 2030 | Sunday, February 3, 2030 | Jan / Feb |
| 2031 | Monday, January 27, 2031 | Sunday, February 2, 2031 | Jan / Feb |
| 2032 | Monday, January 26, 2032 | Sunday, February 1, 2032 | Jan / Feb |
All weeks
Frequently asked questions
What month is week 5 in?
Week 5 typically falls in February. The exact dates shift by up to a few days from year to year because week 1 is anchored to January 4, not January 1.
How do I write week 5 as a week code?
The ISO code is the year plus W05 — for example 2026-W05, short form 26W05, or YYWW date code 2605. See week number formats.
Are these dates the same in every country?
Yes for ISO 8601 (Monday-start) numbering, which is what this table shows. US Sunday-start calendars can label the same days with a number one higher — see week start conventions.