astronomy countdown
Fall Equinox 2025
Count down to the first day of Fall 2025!
Live countdown
Days · Hours · Minutes · Seconds
Fall Equinox 2025 is on .
Days and sleeps
Updated live in your timezone.
Weeks remaining
Includes partial weeks.
Weekends remaining
Counts upcoming Saturdays.
About Fall Equinox 2025
- The September equinox marks the Sun crossing Earth’s equatorial plane southward.
- It marks astronomical autumn in the Northern Hemisphere.
- The exact equinox occurs at one instant worldwide.
Frequently asked questions
When is Fall Equinox 2025?
Fall Equinox 2025 is on Monday, September 22, 2025.
How long is left until Fall Equinox 2025?
The live countdown above continuously updates the days, hours, minutes, and seconds remaining until Fall Equinox 2025.
Can I add Fall Equinox 2025 to my calendar?
Yes. Use the Add to calendar button to download a standard calendar file for this event.