September 2040 Calendar
Welcome to your comprehensive September 2040 calendar featuring all major US federal holidays, international observances, astronomical events, and historical commemorations. This professionally designed calendar includes moon phases, week numbers (ISO 8601), sunrise/sunset information, and planning tools to help you organize your month effectively.
| Week | Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|---|
| W35 | 30 | 1 | 2 | 3 | 4 | 1đ | 2đ |
| W36 | 3Labor Day | 4 | 5 | 6 | 7 | 8đ | 9 |
| W37 | 10 | 11đ | 12 | 13 | 14 | 15đ | 16 |
| W38 | 17 | 18 | 19đ | 20 | 21 | 22Autumn Equinox | 23đ |
| W39 | 24 | 25 | 26đ | 27 | 28 | 29 | 30 |
Comprehensive September 2040 Calendar Information
đēđ¸ US Federal Holidays & Observances
- September 3 Labor Day (federal)
đ International Holidays & Events
- September 22 Autumn Equinox (Northern Hemisphere)
đ This Day in History
- September 2, 31 - Emperor Augustus dies, Tiberius becomes Roman Emperor
- September 11, 2001 - September 11 terrorist attacks
- September 19, 1783 - First manned hot air balloon flight
- September 26, 1960 - First presidential debate televised (Kennedy vs. Nixon)
đ Moon Phases in September 2040
đ Business & Planning Information
Fiscal Quarter
September 2040 falls in Q3 2040 (Q3: Jul-Sep)
Payroll Periods
- Weekly: ~5 payroll periods
- Bi-weekly: ~3 payroll periods
- Semi-monthly: 2 payroll periods
- Monthly: 1 payroll period
đ¯ Monthly Planning Templates
đ Goal Setting Template
Set and track your monthly goals with our structured template. Includes SMART goal framework and progress tracking.
đ Event Planner
Plan parties, meetings, and special events with our comprehensive planning checklist and timeline.
đ° Budget Tracker
Track monthly expenses and income with our easy-to-use budget planning template.
đ Habit Tracker
Build positive habits with our 30-day habit tracking calendar for September 2040.
âšī¸ About September
đ Calendar Facts
- Month #9 of 12 in the Gregorian calendar
- 30 days in September 2040
- Week numbers: 35 to 39
- Season: Fall in Northern Hemisphere
â Astrology & Gems
- Zodiac signs: Virgo & Libra
- Birthstone: Sapphire
- Birth flower: Aster
đ Daylight Information
Times shown for geographic center of US (Kansas)
- Sunrise: ~7:00 AM (varies by location)
- Sunset: ~6:00 PM (varies by location)
- Daylight: ~11 hours (approximate)
đą Interactive Features
â° Days Until Calculator
Calculate days between dates or countdown to important events in September 2040.
đ¤ Share This Calendar
Share this September 2040 calendar with friends and colleagues.
â Frequently Asked Questions
How do I print this September 2040 calendar?
Click the "Print Calendar" button above for a clean, printer-friendly version. The calendar is optimized for standard 8.5"x11" paper in both portrait and landscape orientations. For best results, use the landscape PDF option.
Are the holidays accurate for 2040?
Yes! All US federal holidays are calculated accurately for 2040 using official government schedules. International holidays and observances are included for cultural awareness and planning purposes.
Can I customize this calendar?
While this online version is fixed, you can download our blank calendar template and add your own events, appointments, and notes. We also offer planning templates for goals, budgets, and habit tracking.
What are the week numbers?
Week numbers follow the ISO 8601 standard, where Week 1 is the first week of the year with at least 4 days in the new year. These are commonly used in business and international contexts.