The 6 Month course goes faster and needs more time commitment from you - you have to put in 3 to 4 hours a week, and we guarantee you'll be having confident conversations in just 6 months.
The 6 Minutes a Day course requires much less time, although it's still extremely powerful - you have to put in 6 minutes a day (or about 42 minutes a week if you prefer to do it in larger chunks), and we guarantee you'll be having confident conversations in a year from now.