condition mean min max 0 h after light 335.317 333.775 336.859 4 h after light 189.663 189.448 189.878 8 h after light 90.64095 86.8566 94.4253 4 h after dark 251.4035 235.191 267.616 8 h after dark 276.803 262.401 291.205 12 h after dark 286.4085 276.711 296.106