Business Days
Business days in September 2027
How many working days are in September 2027? Count weekdays minus US federal holidays.
| Metric | Count |
|---|---|
| Total calendar days | 30 |
| Weekdays (Mon–Fri) | 22 |
| US federal holidays on weekdays | 1 |
| Net business days | 21 |
Business days are weekdays (Monday through Friday) minus US federal holidays that fall on weekdays. Weekends (Saturday and Sunday) are never counted. For payroll deadlines, count only the net business days — 21 in September 2027.
Weekdays in September 2027
Every weekday (Monday–Friday) in September 2027. Rows highlighted in amber fall on a US federal holiday.
| Date | Day | Holiday |
|---|---|---|
| Sep 1, 2027 | Wednesday | – |
| Sep 2, 2027 | Thursday | – |
| Sep 3, 2027 | Friday | – |
| Sep 6, 2027 | Monday | Labor Day |
| Sep 7, 2027 | Tuesday | – |
| Sep 8, 2027 | Wednesday | – |
| Sep 9, 2027 | Thursday | – |
| Sep 10, 2027 | Friday | – |
| Sep 13, 2027 | Monday | – |
| Sep 14, 2027 | Tuesday | – |
| Sep 15, 2027 | Wednesday | – |
| Sep 16, 2027 | Thursday | – |
| Sep 17, 2027 | Friday | – |
| Sep 20, 2027 | Monday | – |
| Sep 21, 2027 | Tuesday | – |
| Sep 22, 2027 | Wednesday | – |
| Sep 23, 2027 | Thursday | – |
| Sep 24, 2027 | Friday | – |
| Sep 27, 2027 | Monday | – |
| Sep 28, 2027 | Tuesday | – |
| Sep 29, 2027 | Wednesday | – |
| Sep 30, 2027 | Thursday | – |
Disclaimer:Business day counts are based on US federal holidays and standard Monday–Friday working days. Observed dates may vary by employer or region. Always verify important payroll, legal, or contractual dates with the relevant authority.
Frequently asked questions
- What counts as a business day?
- A business day is any weekday (Monday through Friday) that is not a public holiday. Weekends (Saturday and Sunday) are never counted as business days.
- Does this include state or local holidays?
- No — this count only excludes US federal holidays. State, local and company-specific holidays are not deducted. Check with your employer for a complete list of observed holidays.
- How do I count business days between two specific dates?
- Use the Business Days with Holidays calculator to count working days between any two dates, with holidays from 30 countries.
- How is the net business day count calculated?
- Start with the total calendar days (30), subtract all weekend days (8), then subtract any US federal holidays that fall on a weekday (1). The result is 21 net business days.
- How many weekends are in September 2027?
- September 2027 has 8 weekend days (4 full weekends — 8 Saturdays and Sundays combined).