condition mean min max 4 h after light 2232.6903375 2144.139794 2321.240881 8 h after light 3005.359324 2943.518229 3067.200419 12 h after light 3033.878254 1576.822699 4490.933809 4 h after dark 2219.208142 1926.132987 2512.283297 8 h after dark 2471.7037179999998 2400.367687 2543.039749 12 h after dark 1228.556092 1228.556092 1228.556092