September 2025 Calendar
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 1Labor Day | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 |
- Sep 1 Labor Day
September 2025 has 30 days and starts on Monday, September 1.
September 2025 facts
Federal holidays in September 2025
Labor Day falls on Monday, September 1, 2025.
Weekdays and business days in September 2025
September 2025 has 4 Sundays, 5 Mondays, 5 Tuesdays, 4 Wednesdays, 4 Thursdays, 4 Fridays, 4 Saturdays. That is 22 weekdays and 8 weekend days. Federal holidays fall on 1 weekday in September 2025, leaving 21 business days.
Where September 2025 sits in the year
September 2025 is in the third quarter. September 1, 2025 is day 244 of 2025, and September 30, 2025 is day 273, with 92 days left in the year after the month ends. September 2025 runs from ISO week 36 of 2025 through ISO week 40 of 2025.
September 2025 compared with September 2024
September 2024 started on Sunday. September 2025 starts on Monday. Labor Day was Monday, September 2, 2024 and in 2025 it is Monday, September 1, 2025.
September 2025 day-by-day planner
Use the notes column for deadlines, appointments, or reminders. Weekend and U.S. federal holiday dates are identified so the table can also serve as a basic work-planning sheet.
| Date | Day | Day type | Notes |
|---|---|---|---|
| 1 | Monday | Federal holiday — Labor Day | |
| 2 | Tuesday | Weekday | |
| 3 | Wednesday | Weekday | |
| 4 | Thursday | Weekday | |
| 5 | Friday | Weekday | |
| 6 | Saturday | Weekend | |
| 7 | Sunday | Weekend | |
| 8 | Monday | Weekday | |
| 9 | Tuesday | Weekday | |
| 10 | Wednesday | Weekday | |
| 11 | Thursday | Weekday | |
| 12 | Friday | Weekday | |
| 13 | Saturday | Weekend | |
| 14 | Sunday | Weekend | |
| 15 | Monday | Weekday | |
| 16 | Tuesday | Weekday | |
| 17 | Wednesday | Weekday | |
| 18 | Thursday | Weekday | |
| 19 | Friday | Weekday | |
| 20 | Saturday | Weekend | |
| 21 | Sunday | Weekend | |
| 22 | Monday | Weekday | |
| 23 | Tuesday | Weekday | |
| 24 | Wednesday | Weekday | |
| 25 | Thursday | Weekday | |
| 26 | Friday | Weekday | |
| 27 | Saturday | Weekend | |
| 28 | Sunday | Weekend | |
| 29 | Monday | Weekday | |
| 30 | Tuesday | Weekday |
| Property | Value |
|---|---|
| Days in Month | 30 |
| Weeks | 5 |
| US Federal Holidays | 1 |
| Season | Fall |
| Day of Year (Start) | 244 |
| Days Remaining in Year | 92 |
| Leap Year | No |
Year Overview - September 2025 in Context
Holidays in September:
Labor Day (1)
Frequently Asked Questions about September 2025
How many days are in September 2025?
September 2025 has 30 days. This includes 22 weekdays and 8 weekend days.
What day of the week does September 2025 start on?
September 2025 starts on Monday. The month ends on Tuesday, September 30, 2025.
Is 2025 a leap year?
No, 2025 is not a leap year. February 2025 has 28 days. The next leap year is 2028.
What US holidays are in September 2025?
Labor Day falls on Monday, September 1, 2025.
How many weekdays are in September 2025?
September 2025 has 22 weekdays and 8 weekend days. 21 of those weekdays remain after removing 1 weekday federal holiday.