condition mean min max 4 h after light 279.295637 231.232057 327.359217 8 h after light 387.673016 356.078211 419.267821 12 h after light 306.28419 245.470879 367.097501 4 h after dark 256.3181145 178.466069 334.17016 8 h after dark 198.38299 175.46504 221.30094 12 h after dark 154.117049 154.117049 154.117049