Sbg 8.17 etradi
English Translation of Ramanuja's Sanskrit Commentary By Swami Adidevananda 8.17 These men who know the order of the day and night as established by My will in regard to all beings, beginning with man and ending with Brahma - they understand that what forms Brahma's day is a unit comprising in it a thousand periods of four Yugas (Catur-yugas) and anight is a unit of eal duration.