September 2026 Calendar
September 2026 had 30 days, from Tuesday, September 1 to Wednesday, September 30. It had 21 working days and one federal holiday: Labor Day (Monday, September 7).
Updated · By the YearlyCalendar.org team
- Federal holiday / day off
- Observance
- Weekend
US federal holidays shaded · Wk = ISO week number
| Wk | SundaySun | MondayMon | TuesdayTue | WednesdayWed | ThursdayThu | FridayFri | SaturdaySat |
|---|---|---|---|---|---|---|---|
| 36 | 1 | 2 | 3 | 4 | 5 | ||
| 37 | 6 | 7Labor Day | 8 | 9 | 10 | 11 | 12Rosh Hashanah |
| 38 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 39 | 20 | 21Yom Kippur | 22 | 23 | 24 | 25 | 26Sukkot (first day) |
| 40 | 27 | 28 | 29 | 30 |
Holidays and observances in September 2026
| Holiday | Date | Day | Type | Countdown |
|---|---|---|---|---|
| Labor Day | Monday | Federal | 59 days ago | |
| Rosh Hashanah Begins at sundown the evening before. | Saturday | Religious | 54 days ago | |
| Yom Kippur Begins at sundown the evening before. | Monday | Religious | 45 days ago | |
| Sukkot (first day) Begins at sundown the evening before. | Saturday | Religious | 40 days ago |
September 2026 at a glance
Key dates in September 2026
Times are Eastern Time (EST/EDT).
| Date | Event | Details |
|---|---|---|
| September equinox — first day of fall | Tuesday, September 22, 8:05 PM EDT |
Moon phases in September 2026
Times are Eastern Time (EST/EDT). All 2026 moon phases.
| Phase | Date | Time (ET) |
|---|---|---|
| Last Quarter | 3:51 AM EDT | |
| New Moon | 11:27 PM EDT | |
| First Quarter | 4:44 PM EDT | |
| Full Moon (Harvest Moon) | 12:49 PM EDT |
August 2026 and October 2026
About September
From the Latin septem, "seven" — it was the seventh month of the old Roman calendar. Birthstone: Sapphire. Birth flower: Aster. Zodiac: Virgo / Libra. All 12 months.
Frequently asked questions
What are the first and last business days of September 2026?
The first business day was Tuesday, September 1 and the last was Wednesday, September 30, counting Monday–Friday and skipping US federal holidays.
How many working hours are in September 2026?
September 2026 had 168 working hours at 8 hours per working day, or 176 hours for someone who worked through the federal holidays.
Are there any three-day weekends in September 2026?
Yes. Federal workers got one three-day weekend: Sep 5–7 (Labor Day).
How many weekends are in September 2026?
September 2026 had four full Saturday–Sunday weekends. Tuesdays and Wednesdays occurred five times and every other weekday four times.