It is stated in the Vedas that the present world age, Kali yuga started at the time of the vernal equinox on February 18 in year 3102 B.C., when all the planets conjoined around the star Zeta Piscium, which also indicates the staring point of the sidereal Zodiac (i.e. 0 degree of Aries) Rahu almost exactly conjoined the star Spica, at 180 degrees of the Zodiac. This is also said by the Puranas to be the time of disappearance of Lord Sri Krishna, who have manifested his divine Lila on this planet for 125 years, and Kali yuga began after His returning to His eternal spiritual abode.