all I know is indian times the okish, its good for eu but nightmare for na, matches start at like 2,3 am . I just watch the highlights in the morning, I could watch kr but Indian matches are going on at the same time so I prefer those
EST probably
Best for Americas(NA/LATAM/BR), EU isn't too early in the morning, and Asia's around 3am-6am
I'm PST, so I can watch Americas, EU, and rarely Asia because it's too early but sometimes I'll watch teams that I like