Chuseok , also known as Hangawi (from archaic Korean for "the great middle (of autumn)"), is a major mid-autumn harvest festival and a three-day holiday in South Korea celebrated on the 15th day of the 8th month of the lunar calendar on the full moon. In North Korea, they only celebrate for the day of chuseok. Like many other harvest festivals around the world, it is held around the autumn equinox, i.e. at the very end of summer or in early autumn. It is the biggest traditional holiday in South Korea.