Recently I had a complex business shoot that was broken out in two days. There was a ton of concern with the marketing team that we would be facing no sunlight and also a major storm that was expected to blow through. I did have to make a call to shift day 2 outdoor shoot to the day before because of the storm but ensured the team that shooting in outdoor natural light ( no sun ) is actually a good thing too.
For this particular project it was actually a benefit not dealing with the sun. At times especially in So Cal our sun is bright and can be harsh. We had success everywhere on the grounds not having to worry about shadows or harsh lines. So no sunlight, no problem!