condition mean min max 4 h after light 336.623 328.479 344.767 8 h after light 306.8835 301.569 312.198 12 h after light 262.4925 245.624 279.361 4 h after dark 448.1975 409.401 486.994 8 h after dark 375.3445 366.282 384.407 12 h after dark 380.80899999999997 379.3 382.318