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Related to March equinox: September equinox, June solstice

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.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
The March equinox is often used by astronomers to measure a tropical year -- the mean time it takes for the Earth to complete a single orbit around the sun.
The requirement regarding the March equinox was to make certain that Passover occurs in the Spring.
Giulio Magli, a historian of ancient architecture from Milan Polytechnic, Italy, and Robert Hannah, a classics scholar from the University of Otago in New Zealand, have discovered that at precisely midday during the March equinox, a circular shaft of light shines through the oculus and illuminates the Pantheon's imposing entrance, reports the Telegraph.
Damascus, (SANA) -- The March equinox, an astronomical event where the center of the Sun is in the same plane as the Earth's equator, will take place in Syria on March 21st at 1:21 PM Damascus time.
The rings of Saturn lie in the equatorial plane of the planet, which means that at the March equinox on Saturn, the Sun rises for the northern side of the rings and sets for the southern side, whereas at the September equinox the Sun rises for the southern side of the rings and sets for the northern side.
The Sun crosses the celestial equator (0[degrees] declination) moving northwards at the March equinox, reaches its maximum northerly position over the Tropic of Cancer (23.44[degrees]N) at declination +23.44[degrees] at the June solstice, returns across the equator at the September equinox and reaches its most southerly point at the December solstice over the Tropic of Capricorn (23.44[degrees]S) of declination -23.44[degrees].
A celebration of the March equinox which is sacred to Norse Goddess Iduna, bearer of the magic apples of life!
Vernal equinox, or March equinox, marks the first day of the spring in the Northern Hemisphere on Monday, March 20.
The word Bihu is derived from "Visuvan" that describes a number of festivals in India that are associated with the March Equinox.