Hi all. Each school or dojo have diferents rules for granding, special in black belts. As I can read in the post some said 3 years others 8... My question is: how many days a week? 3 years (one day a week)? = 124 trainig days 1 year (6 days a week)? =288 traing days. Can you see the diference? In my dojo to be a black belt you need 700 trainig days. +- 8 years. Osu.