Autumnal Equinox Day legal definition of Autumnal Equinox Day
Equinox (redirected from Autumnal Equinox Day)
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EQUINOX. The name given to two periods of the year when the days and nights
are equal; that is, when the space of time between the rising and setting of
the sun is one half of a natural day. Dig. 43, 13, 1, 8. Vide Day.
References in periodicals archive
Since it is only possible to view the auroras simultaneously in both poles during the Vernal and Autumnal equinox days
, NHK has opted to push off the broadcast to September.