September 2025 Calendar
September 2025 starts on a Monday and ends on a Tuesday. It has 30 days, of which 22 are weekdays (Monday to Friday), and covers ISO weeks 36 to 40.
Show holidays:
September 2025
| Wk | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 36 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 37 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 38 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 39 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 40 | 29 | 30 | 1 | 2 | 3 | 4 | 5 |
United States: holidays in September 2025
- Labor Day Monday, September 1
United Kingdom: holidays in September 2025
No public holidays in September 2025.
Canada: holidays in September 2025
- Labour Day Monday, September 1
- National Day for Truth and Reconciliation (Federal, BC, MB, NS, PE, NT, NU, YT) Tuesday, September 30
Australia: holidays in September 2025
No public holidays in September 2025.
Week numbers follow ISO 8601. See all week numbers for 2025 or count the working days in a period.