condition mean min max 4 h after light 23.30115 21.5295 25.0728 8 h after light 12.452549999999999 12.0039 12.9012 12 h after light 10.98035 10.6936 11.2671 4 h after dark 13.0501 12.7085 13.432 8 h after dark 17.8936 17.1181 19.0819 12 h after dark 23.361733333333333 22.8541 24.2992