Semiclassical limit and time in quantum cosmology

We propose a method to recover the time variable and the classical evolutio n of the Universe from the minisuperspace wave function of the Wheeler-DeWi tt equation. Defining a Hamilton-Jacobi characteristic function W as the im aginary part of the In Psi we can recover the classical solution and the qu antum corrections. The key idea is to let the energy of the Wheeler-DeWitt equation vanish only after the semiclassical limit is taken.