condition mean min max 4 h after light 1564.493 1508.888 1644.214 8 h after light 961.376 417.454 1429.132 12 h after light 836.4003333333333 546.5678 1142.399 16 h after light 642.6814 526.7694 826.9808 4 h after dark 927.3781666666666 817.6369 1010.584 8 h after dark 1192.678 1026.243 1298.42