condition mean min max 4 h after light 307.3465025 280.391146 334.301859 8 h after light 368.850785 314.041305 423.660265 12 h after light 266.289302 233.701291 298.877313 4 h after dark 207.2864935 168.770518 245.802469 8 h after dark 213.1904475 202.886596 223.494299 12 h after dark 202.822959 202.822959 202.822959