condition mean min max 4 h after light 868.3215895000001 746.531736 990.111443 8 h after light 778.82374 753.039749 804.607731 12 h after light 679.4566580000001 597.219076 761.69424 4 h after dark 693.974103 596.56832 791.379886 8 h after dark 651.602261 645.740203 657.464319 12 h after dark 729.693595 729.693595 729.693595