Business Days in September 2001
September 2001 has 20 business days under the US federal holiday calendar. September 2001 has no US federal holidays. The month covers 30 calendar days, of which 10 fall on a weekend. That count drives invoice due dates, payroll cycles, project sprint planning, and any contract that defines deadlines as a number of working days.
Business Days
20
Calendar Days
30
Weekend Days
10
Holidays
0
Work Weeks
4.0
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
1 wknd | ||||||
2 wknd | 3 | 4 | 5 | 6 | 7 | 8 wknd |
9 wknd | 10 | 11 | 12 | 13 | 14 | 15 wknd |
16 wknd | 17 | 18 | 19 | 20 | 21 | 22 wknd |
23 wknd | 24 | 25 | 26 | 27 | 28 | 29 wknd |
30 wknd |
Holidays in September 2001
No US federal holidays fall on a weekday in September 2001, so banks, the Federal Reserve, and the bond and equity markets keep their regular schedule for the entire month. The full quarter has no US federal closures, which is unusual; staff vacation requests cluster around state and personal days instead.
Day-of-Week Distribution
The count of each weekday in September 2001. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.
| Day | Count |
|---|---|
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 4 |
| Thursday | 4 |
| Friday | 4 |
| Saturday | 5 |
| Sunday | 5 |
Business Days in September 2001 by Country
Working-day counts vary by country because each country observes its own public holidays. The table below covers all eleven holiday calendars supported on this site.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States | 20 | None |
| 🇬🇧United Kingdom | 20 | None |
| 🇨🇦Canada | 20 | None |
| 🇦🇺Australia | 20 | None |
| 🇮🇳India | 20 | None |
| 🇵🇭Philippines | 20 | None |
| 🇫🇷France | 20 | None |
| 🇩🇪Germany | 20 | None |
| 🇯🇵Japan | 20 | None |
| 🇲🇽Mexico | 20 | None |
| 🇸🇬Singapore | 20 | None |
Notable September Deadlines
September 15 is the extended partnership and S-corp filing deadline (Form 1065 and Form 1120-S). Calendar-year C-corps make their Q3 estimated tax payment the same day. The federal fiscal year ends September 30, so government contractors and grant-funded organizations face year-end milestone deliverables in the last week.
How September 2001 Compares
September 2000 had 21 business days, so September 2001 has 1 fewer working day year over year. On the surrounding months, August 2001 has 23 business days and October 2001 has 23. Looking forward, September 2002 will have 21 business days under the same federal holiday calendar.
Using This Calculator
A receivables analyst running a Net 30 portfolio uses the 20-business-day count in September 2001 to project cash collections by Friday of each week and to flag invoices whose due dates land on the holidays listed above. A project manager scoping a sprint that starts on the first business day of September uses the calendar grid to slot stand-ups, design reviews, and customer demos onto live working days rather than weekends. A specialty contractor billing time and materials uses the day-of-week distribution to see how many Mondays and Fridays fall in September 2001, which matters for crews who set installation appointments at the start and end of each week and skip Tuesday-to-Thursday for travel-heavy jobs.
For informational purposes only
This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.