The Purana Index v3.c9.366

v3.c9.366

Yuga—the intervening time between one yuga-sandhyapūrva and sandhyāmsa, four in number, Krta, Treta, Dvāpara and Kali The extent is of 12,000 years of celestial measure, the duration of the yugas includes sandhya, 12,000 divine years, 1,000 caturyugas make a day of Brahmā¹ A yugam of five years, commencing with Śravana and ending with Dhanisthā naksatra—the five years are respectively Agni, Sūrya, Soma, Vāyu and Rudra, consists of Samvatsara, Parivatsara Idvatsara, Anuvatsara and Vatsara, revolves like the wheel owing to the movement of the Sun² Social conditions in³ of Saptarsis⁴