condition mean min max 4 h after light 528.545106 476.071862 581.01835 8 h after light 578.019458 529.114552 626.924364 12 h after light 503.0688945 437.523007 568.614782 4 h after dark 768.7628569999999 546.986968 990.538746 8 h after dark 787.378013 570.903754 1003.852272 12 h after dark 605.495937 605.495937 605.495937