condition mean min max 4 h after light 577.9097265 568.663822 587.155631 8 h after light 621.5298965 577.596967 665.462826 12 h after light 733.1647645 704.09157 762.237959 4 h after dark 773.9324730000001 726.632344 821.232602 8 h after dark 923.925587 785.985154 1061.86602 12 h after dark 606.796562 606.796562 606.796562