Sūta said: During the (so-called) day all the Vikṛtis—the Viśvedevas, the Prajāpatis and the sages stay by. During the night all of them are dissolved. They are produced (again) at the end of the night. A day of His constitutes our kalpa. His night too similarly another kalpa. There are fourteen Manus by the time a thousand sets of four yugas come to a close. O brahmins, the Kṛta yuga consists of four thousand years. Four hundred, three hundred, two hundred and hundred years respectively constitute the period of transition both at the beginning and end of a yuga.[1]