condition mean min max 4 h after light 291.6783505 208.539749 374.816952 8 h after light 380.0378105 370.248935 389.826686 12 h after light 435.43768 353.848525 517.026835 4 h after dark 351.3453065 269.093785 433.596828 8 h after dark 340.625631 283.679722 397.57154 12 h after dark 193.304128 193.304128 193.304128