condition mean min max 0 h after light 263.31 261.995 264.625 4 h after light 381.115 363.779 398.451 8 h after light 264.4085 251.535 277.282 4 h after dark 121.9915 120.855 123.128 8 h after dark 169.2255 168.846 169.605 12 h after dark 304.3415 295.431 313.252