condition mean min max 4 h after light 723.3517214999999 512.693595 934.009848 8 h after light 833.299246 752.575575 914.022917 12 h after light 856.4119705 654.438038 1058.385903 4 h after dark 634.295235 472.462826 796.127644 8 h after dark 521.2091095000001 433.109239 609.30898 12 h after dark 538.461012 538.461012 538.461012