A Classical Dictionary of Hindu Mythology and Religion, Geography, History, and Literature c5.2209

c5.2209

YUGA. An age of the world. Each of these ages is preceded by a period called its Sandhyā or twilight, and is followed by another period of equal length called Sandhyānsa, ‘portion of twilight,’ each being equal to one-tenth of the Yuga. The Yugas are four in number, and their duration is first computed by years of the gods:—