I have a similar "partition" but it's forced on me by laws of physics: I live on a tropical island a bit less than half-way around the world. By force of everyo

I have a similar "partition" but it's forced on me by laws of physics: I live on a tropical island a bit less than half-way around the world. By force of everyone else's schedule in the US, my "business time" goes from about 5 am (about as early as I can bear to take a meeting) to about 9 am when everyone on the west coast is wrapping up their day. Then I attend to my work in the lab where I can sit down to the first "maker" part of my day, diagnosing cancer under the microscope. After dinner I usually have a second "maker period", reading papers, working through a computer science text (I never got a formal computing education but was lucky that physics proved to be "close enough"), planning experiments, and writing long-form business documents.