condition mean min max 4 h after light 2021.0535025 1832.259564 2209.847441 8 h after light 2146.8943175 1960.574291 2333.214344 12 h after light 2617.909299 2572.840882 2662.977716 4 h after dark 3278.3502825 3095.198623 3461.501942 8 h after dark 3707.6029500000004 3045.973843 4369.232057 12 h after dark 2688.761765 2688.761765 2688.761765