condition mean min max 4 h after light 309.2564265 250.511565 368.001288 8 h after light 145.1576205 68.456921 221.85832 12 h after light 73.6100795 58.187552 89.032607 4 h after dark 62.977939 53.137506 72.818372 8 h after dark 66.3887425 43.145178 89.632307 12 h after dark 299.989962 299.989962 299.989962