condition mean min max 0 h after light 211.398 203.757 219.039 4 h after light 185.2235 172.769 197.678 8 h after light 184.459 130.023 238.895 4 h after dark 341.4955 338.053 344.938 8 h after dark 344.959 320.101 369.817 12 h after dark 255.9655 206.245 305.686