Question

Different between equinox and solstice

Answer 1

An equinox represents a day with equal duration of day and night (Mar 21 and September 23) and thus we have a spring and a fall equinox. And solstice refers to a day with either the longest day (June 21, also called summer solstice) or shortest day (Dec 21, also referred to as winter solstice).

Answer 2

SOLSTICE:--
-- The longest day or the shortest day, the extremes of inequal division of time between night and day. 
-- The sun is directly overhead the Tropic of Cancer or Tropic of Capricorn. 

EQUINOX:--
-- Equal duration of day and night.
-- Sun is vertically overhead the equator.