September 2026 calendar
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September 2026 begins on a Tuesday and ends on a Wednesday: 30 days, 22 weekdays and 8 weekend days. Tuesdays and Wednesdays come round five times this month.
September starts the academic year and, for many teams, the real planning year. Week numbers climb into the high thirties — seeing them printed avoids the "which week are we in" exchange.
September 2026 in numbers
| Days | 30 |
|---|---|
| Working days | 22 (Monday to Friday, before holidays) |
| Working days after US holidays | 21 |
| Weekend days | 8 |
| First day | Tuesday, September 1, 2026 |
| Last day | Wednesday, September 30, 2026 |
| ISO weeks | 36–40 |
Working days in September 2026
September 2026 has 22 weekdays. Nationwide public holidays that land on one of them take it back, so the count depends on the country:
| Country | Holidays on weekdays | Working days |
|---|---|---|
| United States | Labor Day (Monday 7) | 21 |
| United Kingdom | none | 22 |
| Canada | Labour Day (Monday 7), National Day for Truth and Reconciliation (Wednesday 30) | 20 |
| Australia | none | 22 |
Regional holidays — a state day in the US, Scotland's own bank holidays — are not subtracted. The linked pages carry the month-by-month table for the whole of 2026.
Week by week
ISO week numbers, which the calendar can print down the margin. Weeks at either end of the month reach into the months beside it; the dates below are the part that falls inside September.
| Week | Dates in September | Days |
|---|---|---|
| Week 36 | September 1–6 | 6 |
| Week 37 | September 7–13 | 7 |
| Week 38 | September 14–20 | 7 |
| Week 39 | September 21–27 | 7 |
| Week 40 | September 28–30 | 3 |
Days of the week in September 2026
Every date of the month by weekday — for checking whether a date falls at the weekend, or how many Mondays and Fridays there are to plan around.
| Weekday | Dates in September |
|---|---|
| Sunday | September 6, 13, 20, 27 |
| Monday | September 7, 14, 21, 28 |
| Tuesday | September 1, 8, 15, 22, 29 |
| Wednesday | September 2, 9, 16, 23, 30 |
| Thursday | September 3, 10, 17, 24 |
| Friday | September 4, 11, 18, 25 |
| Saturday | September 5, 12, 19, 26 |
United States holidays in September 2026
| Date | Day | Holiday |
|---|---|---|
| September 7 | Monday | Labor Day |
United States holidays are shown because that is what the generator opens with. The holiday country is a separate setting from the calendar language, so you can mark United Kingdom, Canadian or Australian holidays instead, choose from over two hundred other countries, or turn the holiday layer off entirely.
Moon phases in September 2026
| Date | Phase |
|---|---|
| September 4 | Last quarter |
| September 11 | New moon |
| September 18 | First quarter |
| September 26 | Full moon |
Dates are UTC. Switch on Moon phases in the generator to have these printed on the calendar itself.
This month in other languages
- septiembre 2026 — Español
- setembro 2026 — Português
- septembre 2026 — Français
- September 2026 — Deutsch
- settembre 2026 — Italiano
- september 2026 — Nederlands
- wrzesień 2026 — Polski
- Eylül 2026 — Türkçe
- september 2026 — Svenska
- September 2026 — Bahasa Indonesia