condition mean min max 4 h after light 451.7435135 363.870355 539.616672 8 h after light 277.43559300000004 228.575063 326.296123 12 h after light 384.872662 339.058631 430.686693 4 h after dark 286.559206 164.545737 408.572675 8 h after dark 202.25221249999998 56.863973 347.640452 12 h after dark 509.070049 509.070049 509.070049