What is Autumn Equinox and for what reason does it work out? A fter a suprise September heatwave in the UK, when temperatures climbed as high as 33.5C, pre-winter has now formally set in. The adjustment of seasons is the aftereffect of the pre-winter equinox, which shows up this year on Saturday 23 September. The pre-winter equinox generally happens in September, either falling on the 22nd or 23rd day of the month. An equinox happens two times in the year when the sun "sits right over Earth's Equator", Public Geographic states. The Imperial Observatory in Greenwich, London, makes sense of that the Earth, which slants on its pivot, circles the sun. "As it circles the sun, the sun enlightens the northern or southern half of the globe really relying upon where the Earth is along its circle," the exhibition hall states. "Be that as it may, at two places in the year the sun will enlighten the northern and southern halves of the globe similarly. These are known...