condition mean min max 4 h after light 534.283439 406.688978 661.8779 8 h after light 459.021074 420.425476 497.616672 12 h after light 465.4193375 441.751633 489.087042 4 h after dark 650.1744785000001 441.355143 858.993814 8 h after dark 786.343797 530.227642 1042.459952 12 h after dark 579.536333 579.536333 579.536333