condition mean min max 4 h after light 423.5 423.5 423.5 8 h after light 402.45 393.5 411.4 12 h after light 449.1 421.4 476.8 4 h after dark 292.45000000000005 273.3 311.6 8 h after dark 360.7 340.0 381.4 12 h after dark 352.0 341.4 362.6