Week 9 of 2026 runs February 23 to March 1
ISO week 9 of 2026 begins on Monday, February 23, 2026 and ends on Sunday, March 1, 2026. It has already passed; the current week is 39. The week covers the turn from February into March.
What dates are in week 9?
| Weekday | Date | Day of year | Notes |
|---|---|---|---|
| Monday | February 23, 2026 | 54 | |
| Tuesday | February 24, 2026 | 55 | |
| Wednesday | February 25, 2026 | 56 | |
| Thursday | February 26, 2026 | 57 | |
| Friday | February 27, 2026 | 58 | |
| Saturday | February 28, 2026 | 59 | |
| Sunday | March 1, 2026 | 60 |
No holiday or widely marked observance falls inside week 9 of 2026. The seven dates always run Monday through Sunday, which is the part of ISO 8601 that most often catches people out: a week that starts on Sunday is a different convention and gives a different number.
How ISO week 9 is worked out
ISO 8601 fixes week one as the week containing the first Thursday of January, which is the same as saying the week containing 4 January, or the week holding the majority of its days in the new year. Counting forward from there, week 9 is the 9th Monday-to-Sunday block of 2026, which lands on February 23. All seven dates sit inside 2026, so the ISO year and the calendar year agree for this week.
When is week 9 in other years?
| Year | Monday | Sunday | Weeks in year |
|---|---|---|---|
| 2026 | February 23 | March 1 | 53 |
| 2027 | March 1 | March 7 | 52 |
| 2028 | February 28 | March 5 | 52 |
| 2029 | February 26 | March 4 | 52 |
| 2030 | February 25 | March 3 | 52 |
Week 9 shifts by a day or two each year because a year is 52 weeks plus one or two days, so the Monday that opens it moves from February 23 in 2026 to March 1 in 2027.
How far away is week 9?
Today is Wednesday, September 23, 2026, which sits in ISO week 39 of 2026. Week 9 of 2026 closed 206 days ago. The same week number in the following year is listed in the table above.
Questions
- What dates are in week 9 of 2026?
- Monday February 23, 2026 through Sunday March 1, 2026.
- What week is it now?
- ISO week 39 of 2026. Today is Wednesday, September 23, 2026.
- How many weeks does 2026 have?
- 53. The 2026 week count page explains the rule.
- Do ISO weeks start on Monday or Sunday?
- Monday. A Sunday-first week is a different convention and can give a different week number for the same date.
Nearby weeks
Jump to a week
All 53 weeks · Weeks in 2026 · Day of the year · Weeks until any date · Date calculator