condition mean min max 0 h after light 256.46 254.417 258.503 4 h after light 1369.645 1321.06 1418.23 8 h after light 2215.195 2001.95 2428.44 4 h after dark 548.6875 450.394 646.981 8 h after dark 302.8865 289.177 316.596 12 h after dark 255.1625 222.565 287.76