condition mean min max 4 h after light 476.6 476.6 476.6 8 h after light 399.45000000000005 390.8 408.1 12 h after light 357.4 322.9 391.9 4 h after dark 302.45 300.2 304.7 8 h after dark 298.05 249.8 346.3 12 h after dark 218.35 202.6 234.1