condition mean min max 4 h after light 783.339587 536.062502 1030.616672 8 h after light 966.6484989999999 803.943541 1129.353457 12 h after light 1094.4554495 966.17766 1222.733239 4 h after dark 863.0868155000001 680.825831 1045.3478 8 h after dark 822.8760155 573.309177 1072.442854 12 h after dark 587.2438 587.2438 587.2438