condition mean min max 4 h after light 291.557383 288.809166 294.3056 8 h after light 315.0568525 266.064474 364.049231 12 h after light 431.617929 327.335499 535.900359 4 h after dark 663.786559 502.361464 825.211654 8 h after dark 652.5041544999999 567.924364 737.083945 12 h after dark 523.722334 523.722334 523.722334