Mon-Thu, 2 hours per day, Sat 7 hours per day, for a total of 15 hours per week.
We tend to ramp it up at the end to get everything done, but we aim to be "finished" 1 week before Stop Build day, so programming can test stuff out, drivers can get some experience, and we can fix anything that isn't working right.
Of course, none of that includes "homework" we give the students - to think about new mechanisms, to figure out how something is going to work on paper, or "do the math" behind something to make sure it'll meet our needs. Plus there's the obligatory 2+ hours per day spent on Chief Delphi, but that may just be me
