condition mean min max 4 h after light 491.961719 364.075997 619.847441 8 h after light 434.07444999999996 372.821852 495.327048 12 h after light 456.95391900000004 430.210884 483.696954 4 h after dark 453.228517 351.973433 554.483601 8 h after dark 407.715243 399.462826 415.96766 12 h after dark 438.078211 438.078211 438.078211