condition mean min max 4 h after light 517.1 517.1 517.1 8 h after light 440.5 431.9 449.1 12 h after light 446.29999999999995 434.7 457.9 4 h after dark 456.4 409.4 503.4 8 h after dark 390.25 370.6 409.9 12 h after dark 337.55 324.6 350.5