Fall Equinox 2024 Date. In different time zones, the date of the equinox may differ by a day, so it is important to indicate your exact location. Due to the differences between the calendar year and the tropical year, there’s no exact date of the autumn equinox.
Below are the dates for the first day of fall in 2025 and beyond: Due to the differences between the calendar year and the tropical year, there’s no exact date of the autumn equinox.