There are specific times when the astronomical seasons officially turn over -- for fall, it's the autumnal equinox. For spring, it's the vernal equinox. Fall equinox in the Northern Hemisphere is ...
22, 2023. [Courtesy, Diaa Bekheet] The Northern Hemisphere's spring - or vernal - equinox can land between March 19 and 21, depending on the year. Its fall - or autumnal - equinox can land between ...