condition mean min max 4 h after light 269.5 269.5 269.5 8 h after light 216.45 209.2 223.7 12 h after light 221.35 191.2 251.5 4 h after dark 286.6 177.0 396.2 8 h after dark 357.20000000000005 344.6 369.8 12 h after dark 351.04999999999995 350.7 351.4