condition mean min max 4 h after light 235.6 235.6 235.6 8 h after light 234.15 192.3 276.0 12 h after light 393.75 314.3 473.2 4 h after dark 487.35 424.5 550.2 8 h after dark 560.5999999999999 424.4 696.8 12 h after dark 430.05 411.6 448.5