condition mean min max 0 h after light 9.54812 9.35138 9.74486 2 h after light 12.45375 12.1409 12.7666 4 h after light 10.83425 10.2665 11.402 8 h after light 11.02585 10.3528 11.6989 12 h after light 13.01675 12.8094 13.2241 2 h after dark 14.044550000000001 13.0162 15.0729 4 h after dark 9.178855 8.50699 9.85072 8 h after dark 9.409600000000001 8.91939 9.89981 12 h after dark 9.90476 9.90224 9.90728