On the feasts and the time of year ONLY the feast of Passover is told to be in it’s appointed season. NOTHING is said about the season of the other feasts. So realistically the “Fall Feasts” could start earlier than fall. Fall Feasts seems to be a term used to describe the general time of the feasts not a prerequisite. As a result Rosh Hashanah CAN be before the equinox in September. While the finding of Abib is important to the Passover season as long as Nisan 14 is on or after the spring equinox then it will be in season if Abib is found. Nisan 1 can be before the equinox since it is the Passover that has to be in spring not the whole month of Nisan.

 

This year Abib was found in 2 locations before the sighting of the moon. One location 2 days prior one location 1 day prior.

 

Paul
__
The Fall feasts are determine by the fact that they are counted off 6 months after Nisan.
 
There is no requirement for any of the feasts to be timed before or after the fall or spring equinox.  I've seen some people pick out a Hebrew word and try to claim it means "Equinox", but all of the words the mistranslators pick mean something else, and the Hebrew words truly used to mean "equinox" do not appear in Scripture.  There is no evidence that Moses or anyone in his time ever paid attention to when any of the equinoxes happened.

Jovial