condition mean min max 4 h after light 11.7233155 11.068487 12.378144 8 h after light 11.790257 11.068487 12.512027 12 h after light 11.671601500000001 10.19866 13.144543 4 h after dark 10.7796515 10.448313 11.11099 8 h after dark 10.690355 9.872883 11.507827 12 h after dark 9.379989 9.379989 9.379989