condition mean min max 4 h after light 374.758956 312.285855 437.232057 8 h after light 440.4885865 404.905231 476.071942 12 h after light 441.1601685 430.824325 451.496012 4 h after dark 380.630296 328.931781 432.328811 8 h after dark 389.4220295 378.849242 399.994817 12 h after dark 309.347351 309.347351 309.347351