Fall 2024 Begins:
Monday, September 22, 2025 at 18:19 UTC 8:44 am EDT
- Mountain Time: 6:44 AM MDT
- Pacific Time: 5:44 AM PDT
The autumnal equinox, or fall equinox, is an astronomical event that marks the start of fall. It occurs when the sun is directly above the equator, dividing day and night into equal parts. The exact date of the equinox can vary by up to one day depending on the time zone. Fall in the Northern Hemisphere typically includes September, October, and November.
When does Winter begin for 2025?