Starts tommorow and theres an update which will even out the math on forecast.
Because of the 40,000 ETH hard cap, not all of the 80% tokens are going to be sold in this token sale. The rest will be kept in an AdEx fund address, vested for 24 months with a 6 months cliff, and used within the AdEx dapps themselves to provide easy means of purchasing ADX for easy onboarding of new advertisers.