Days Until September 22, 2025 Calculator

Calculate From Custom Date

About September 22, 2025

September 22, 2025 marks the Autumnal Equinox in the Northern Hemisphere, signaling the official start of fall. This astronomical event occurs when the Sun crosses the celestial equator, making day and night nearly equal in length worldwide.

How to Use This Calculator

1. View the automatic countdown from today to September 22, 2025
2. Use the custom date picker to calculate days from any date
3. See the breakdown in months, weeks, and hours

Important Considerations

• All calculations include the end date
• Weekends are included in the total days
• Calculations are based on your local timezone