Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
주야평분의 날은 낮과 밤의 길이가 같은 날입니다.juya pyeongbun-ui nal-eun naggwa bam-ui gili-ga gat-eun nal-imnida.The equinoctial day is the day when the length of day and night is the same.