condition mean min max 4 h after light 836.0219666666667 766.4288 902.9429 8 h after light 700.5716 438.5842 986.9059 12 h after light 634.4639 615.1456 670.7504 16 h after light 1018.3730666666667 804.6192 1187.961 4 h after dark 1092.8183333333332 1032.369 1136.312 8 h after dark 889.8676 679.9929 1117.103