condition mean min max 4 h after light 516.6974485000001 494.801375 538.593522 8 h after light 576.68878 528.120172 625.257388 12 h after light 574.6158435 435.594902 713.636785 4 h after dark 615.091561 510.374142 719.80898 8 h after dark 569.4443755 453.751415 685.137336 12 h after dark 538.593522 538.593522 538.593522