condition mean min max 4 h after light 729.4865225000001 708.565138 750.407907 8 h after light 707.785406 606.103297 809.467515 12 h after light 870.753477 819.847441 921.659513 4 h after dark 1181.121149 707.182397 1655.059901 8 h after dark 1044.2353935 840.449638 1248.021149 12 h after dark 1061.497705 1061.497705 1061.497705