condition mean min max 4 h after light 1965.2209970000001 1533.720808 2396.721186 8 h after light 2725.2715095000003 2451.205011 2999.338008 12 h after light 2633.3732675 2461.512704 2805.233831 4 h after dark 2392.4210709999998 1958.840854 2826.001288 8 h after dark 1813.213098 1531.655678 2094.770518 12 h after dark 1465.739807 1465.739807 1465.739807