September 2026 has 30 days, starts on a Tuesday and has 21 US work days.
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Labor Day is on Monday, September 7.
September 2026
| SSun | MMon | TTue | WWed | TThu | FFri | SSat |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| 6 | 7, Labor Day | 8 | 9 | 10 | 11 | 12 |
| 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 27 | 28 | 29 | 30 |
- Federal holiday, on the day it is observed
- Holiday date on a weekend
- Other well-known date
September 2026 has 22 weekdays and 1 federal day off, which leaves 21 US work days.
| Days | 30 |
|---|---|
| Starts on | Tuesday, September 1 |
| Ends on | Wednesday, September 30 |
| Weekdays | 22 |
| Weekend days | 8 |
| Federal days off | 1 |
| US work days | 21 |
| Days of the year | 244 to 273 |
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 4 | 4 | 5 | 5 | 4 | 4 | 4 |
The weekdays in blue come five times in September; the others come four times.
September 2026 touches these ISO weeks.
| ISO week | Monday to Sunday |
|---|---|
| Week 36 | August 31 to September 6 |
| Week 37 | September 7 to September 13 |
| Week 38 | September 14 to September 20 |
| Week 39 | September 21 to September 27 |
| Week 40 | September 28 to October 4 |
The rest of 2026 is one click away.
See every federal holiday of 2026 on the federal holidays 2026 page, or the pay dates that fall in September on the 2026 payroll calendar.
Here are answers to the questions people ask about September 2026.
- What day does September 2026 start on?
- September 2026 starts on Tuesday, September 1 and ends on Wednesday, September 30.
- How many weekdays and weekends are in September 2026?
- September 2026 has 30 days: 22 weekdays and 8 weekend days. Tuesday and Wednesday come five times.
- Are there federal holidays in September 2026?
- Yes: Labor Day (Monday, September 7). That leaves 21 US work days of the 22 weekdays.
- What are the week numbers of September 2026?
- September 2026 runs through ISO weeks 36 to 40. The ISO week starts on Monday, and the week that holds January 1 is the one with the year's first Thursday. Turn on Week numbers in the calendar to see them against each row.
- Which days of the year are September 2026?
- September 2026 is day 244 to day 273 of the year, which are Julian dates 244 to 273.
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