condition mean min max 4 h after light 537.6800875 493.046901 582.313274 8 h after light 588.404927 548.558549 628.251305 12 h after light 567.8250230000001 567.687661 567.962385 4 h after dark 755.073036 733.350195 776.795877 8 h after dark 723.3225655000001 676.413074 770.232057 12 h after dark 630.436891 630.436891 630.436891