condition mean min max 4 h after light 546.1 546.1 546.1 8 h after light 499.95000000000005 498.3 501.6 12 h after light 697.55 361.0 1034.1 4 h after dark 726.1 534.2 918.0 8 h after dark 958.0 588.7 1327.3 12 h after dark 946.35 844.3 1048.4