Roughly two to three hours a week, spread how you like
Each module is designed to be worked through in two to three focused hours, including the accompanying worksheet. Most participants take a week or so per module, though a few move through faster during a slow stretch at their current job and slower during a busy one.
There is no fixed deadline pressure attached to the pacing. The course is built to be worked around a current role, which is precisely the point: it is meant to be finished before you resign, not after.