We don't make people punch in and punch out. We give people the flexibility they need to do what they need to do. If we are not taking care of personal errands etc, we're working on something fun. We do get out and do things as a team etc & take breaks when needed lol.

Edit: To answer your question I work at least probably 14 hours, but there are times when it's less and times when it's more, depends how hard I can push given the constraints. It varies.