condition mean min max 4 h after light 1182.785973 1124.831552 1240.740394 8 h after light 1060.797335 767.874718 1353.719952 12 h after light 1219.0325985 1173.847441 1264.217756 4 h after dark 1110.6076130000001 1101.790862 1119.424364 8 h after dark 731.2612515 522.336558 940.185945 12 h after dark 1021.590364 1021.590364 1021.590364