condition mean min max 4 h after light 597.2640685 558.811596 635.716541 8 h after light 673.634319 664.550663 682.717975 12 h after light 676.9818225 644.267601 709.696044 4 h after dark 695.8927565 648.232057 743.553456 8 h after dark 796.102337 780.135993 812.068681 12 h after dark 627.503144 627.503144 627.503144