September 2026 Calendar
Updated November 6, 2026 · Edited by the JanuaryCalendar.com team
September 2026 started on Tuesday, September 1, and ended on Wednesday, September 30. It had 30 days, 22 weekdays and 21 US working days. US federal holidays: Labor Day (Mon, Sep 7).
- Starts
- Tuesday
- Days
- 30
- US working days
- 21
- Full moon
- Sep 26
- Birthstone
- Sapphire
- Zodiac
- Virgo, Libra
September 2026
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4Last Quarter | 5 | ||
| 6 | 7Labor Day | 8 | 9 | 10New Moon | 11Patriot Day | 12 |
| 13Grandparents Day | 14 | 15 | 16 | 17 | 18First Quarter | 19 |
| 20 | 21 | 22 | 23 | 24 | 25 | 26Full Moon |
| 27 | 28 | 29 | 30 |
- Sep 4◑ Last Quarter, 3:51 a.m. EDT
- Sep 7Labor Day
- Sep 10● New Moon, 11:27 p.m. EDT
- Sep 11Patriot Day
- Sep 13National Grandparents Day (US)
- Sep 18◐ First Quarter, 4:44 p.m. EDT
- Sep 26○ Full Moon, 12:49 p.m. EDT
September 2026 holidays and observances
| Date | Day | Holiday or observance | Notes |
|---|---|---|---|
| Sep 7 | Mon | Labor Day | Federal holiday |
| Sep 11 | Fri | Patriot Day | Observance |
| Sep 13 | Sun | National Grandparents Day (US) | Observance |
Dates follow federal rules (a holiday on Saturday is observed Friday, on Sunday the following Monday). UK bank holidays follow standard rules; one-off extra holidays are announced by the government.
Moon phases
| Phase | Date (Eastern) | Time (ET) | Time (UTC) |
|---|---|---|---|
| ◑ Last Quarter | Friday, September 4 | 3:51 a.m. EDT | Sep 04, 07:51 UTC |
| ● New Moon | Thursday, September 10 | 11:27 p.m. EDT | Sep 11, 03:27 UTC |
| ◐ First Quarter | Friday, September 18 | 4:44 p.m. EDT | Sep 18, 20:44 UTC |
| ○ Full Moon | Saturday, September 26 | 12:49 p.m. EDT | Sep 26, 16:49 UTC |
Calculated with standard astronomical algorithms; Eastern Time.
Working days
September 2026 had 21 working days in the US: 22 weekdays minus 1 federal holiday on a weekday. Tuesday and Wednesday occurred five times.
| Weekday | Count |
|---|---|
| Sunday | 4 |
| Monday | 4 |
| Tuesday | 5 |
| Wednesday | 5 |
| Thursday | 4 |
| Friday | 4 |
| Saturday | 4 |
Week numbers
| ISO week | Dates |
|---|---|
| Week 36 | Sep 1 – 6 |
| Week 37 | Sep 7 – 13 |
| Week 38 | Sep 14 – 20 |
| Week 39 | Sep 21 – 27 |
| Week 40 | Sep 28 – 30 |
Printable September 2026 calendar
Free for personal, classroom and office use. See all printable calendars.
Frequently asked questions
How many days are in September 2026?
September 2026 had 30 days. It started on a Tuesday and ended on a Wednesday.
How many working days are in September 2026?
September 2026 had 21 US working days (22 weekdays minus federal holidays).
What federal holidays are in September 2026?
Labor Day (Mon, Sep 7).
When is the full moon in September 2026?
The full moon occurred on Saturday, September 26, 2026 at 12:49 p.m. EDT.
What is the September birthstone and zodiac sign?
The September birthstone is sapphire. People born Sep 1–22 are Virgo; those born Sep 23–30 are Libra.