condition mean min max 4 h after light 400.1145 399.898 400.331 8 h after light 431.2795 425.16 437.399 12 h after light 319.639 312.517 326.761 4 h after dark 510.824 479.424 542.224 8 h after dark 444.16549999999995 427.448 460.883 12 h after dark 452.794 441.773 463.815