Difference between Krishna Janmashtami and Krishna Jayanthi

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about Krishna Jayanthi:Five thousand years ago, when Srikrishna was born, the day wasSimha masam (Avani), Sravana masam, Bahula, Ashtami. and Rohini star.Hence ideally all these conditions have to match to celebrateSrijayanthi. But many a times they dont coincide. So the authorities ofvarious sections of Hindus, have adopted their own criterion forcelebration. For some it is