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
주야평분선은 낮과 밤의 길이가 같은 시점을 의미합니다.juyapyungbunsun-eun najgwa bam-ui giri-ga gat-eun sijum-eul uimi-hamnida.The equinoctial refers to the point when day and night are of equal length.