IIRC, they varied it for each of the subsequent missions based on what the need for the mission was. Once Armstrong and Aldrin had set down and made it safely back, they could (and did) adequetly brief the crews of the next missions on what to expect. I believe one of the last Apollo missions set down during what was effectively “high noon” for that part of Luna, because they were going to be mucking about in craters and needed to be able to see the bottoms.