condition mean min max 4 h after light 447.8 447.8 447.8 8 h after light 484.35 474.2 494.5 12 h after light 539.75 470.8 608.7 4 h after dark 498.2 497.4 499.0 8 h after dark 401.0 330.5 471.5 12 h after dark 397.04999999999995 309.2 484.9