condition mean min max 4 h after light 424.7095175 394.560828 454.858207 8 h after light 473.8646615 441.020612 506.708711 12 h after light 461.563997 449.588245 473.539749 4 h after dark 487.6589105 405.323166 569.994655 8 h after dark 473.03484249999997 387.137617 558.932068 12 h after dark 318.254932 318.254932 318.254932