condition mean min max 4 h after light 310.53326749999997 291.920527 329.146008 8 h after light 263.6431785 235.39937 291.886987 12 h after light 321.561333 290.552082 352.570584 4 h after dark 437.6448515 370.750604 504.539099 8 h after dark 556.034318 555.501661 556.566975 12 h after dark 826.724364 826.724364 826.724364