condition mean min max 4 h after light 633.07825 576.539749 689.616751 8 h after light 634.691405 608.617162 660.765648 12 h after light 739.293596 679.520354 799.066838 4 h after dark 829.9721205 752.078366 907.865875 8 h after dark 879.7713785 785.052107 974.49065 12 h after dark 807.629153 807.629153 807.629153