condition mean min max 4 h after light 514.4571225 307.352998 721.561247 8 h after light 727.9473230000001 593.005076 862.88957 12 h after light 727.016114 672.996959 781.035269 4 h after dark 458.0166615 337.10807 578.925253 8 h after dark 361.2320565 218.924364 503.539749 12 h after dark 213.155134 213.155134 213.155134