condition mean min max 4 h after light 391.27932350000003 312.714024 469.844623 8 h after light 399.6642825 377.240569 422.087996 12 h after light 449.05945099999997 404.412845 493.706057 4 h after dark 683.585856 483.143443 884.028269 8 h after dark 764.2052545 572.793837 955.616672 12 h after dark 618.129203 618.129203 618.129203