This is the Grading syllabus used by DKC

1. Red  - Yellow-Orange

2. Green - Blue - Purple

3. Brown - Brown/White - Brown/Black

4.Black/White - Black Dan Grade.

Rules Re Grading at DKC

All Kyu  grades up to Brown Belt appox 3 months   above Brown  approx 6 months.

It all depends how often you train.

Dan Grades a minimum of 3 years.

Juniors can grade to Black when they are 10years of age.

They can do a 2nd dan at 14 years of age.

They learn exactly the same syllabus as adults so they do not have to regrade when they become seniors providing they have trained continuously.