condition mean min max 4 h after light 344.3 344.3 344.3 8 h after light 329.8 286.0 373.6 12 h after light 408.9 313.0 504.8 4 h after dark 667.25 495.3 839.2 8 h after dark 752.8499999999999 738.4 767.3 12 h after dark 554.4 470.4 638.4