condition mean min max 3 h after light 188.77566666666667 180.69 192.881 6 h after light 231.19333333333333 193.992 291.887 9 h after light 328.485 280.967 359.751 12 h after light 364.40225 172.337 464.736 3 h after dark 299.875 277.883 314.278 6 h after dark 232.695 221.025 240.384 9 h after dark 163.69133333333335 137.561 181.1 12 h after dark 133.4325 114.663 152.202