condition mean min max 4 h after light 476.9 476.9 476.9 8 h after light 499.7 484.5 514.9 12 h after light 541.15 532.0 550.3 4 h after dark 454.65000000000003 315.1 594.2 8 h after dark 391.75 365.1 418.4 12 h after dark 369.1 359.6 378.6