śuklaḥ kṛṣṇaś ca mānada

yamah-three hours; catvarah-four; catvarah-and four; martyanam-of the human beings; ahani-duration of day; ubhe-both day and night; paksah-fortnight; panca-dasa-fifteen; ahani-days; suklah-white; krsnah-black; ca-also; manada-measured.