Feast of Trumpets on FIRST new moon after EQUINOX; next new moon in October

https://irp-cdn.multiscreensite.com/afc54bfe/files/uploaded/avivbarleyreckoning_g6mYviL8RVqWHEA3HqQZ.pdf

Check out above link showing barley not used for beginning new year and info on equinox in Bible.
hint: 40 years in desert no barley grown

Passover not in winter
Feast of Trumpets not in summer

Moses grew up in Egypt, knew how to know equinox timing.

Great pyramid base on exact East-West bearing lining up with raising-setting sun on equinox