condition mean min max 4 h after light 536.30898 506.616672 566.001288 8 h after light 466.00665300000003 425.396634 506.616672 12 h after light 469.4104235 432.204175 506.616672 4 h after dark 454.0975825 390.616672 517.578493 8 h after dark 544.317014 456.940433 631.693595 12 h after dark 633.582586 633.582586 633.582586