I think the Schrodinger equation has a certain insight in it about the nature of time. after all the first part of the equation is change in time. the second part is the total energy. and the equation says they are equal. so, if we look at the wave function psi of the universe, we see change in time can only happen because of the energy of the universe. --and visa versa. I mean to say that when we see an object moving, we say it has moment of inertia. Something is keeping it moving, and that is is momentum. And we know from relativity that space itself (though not matter) is a thing that can flow and move. The Einstein equation says the curvature of space equals its energy. Well the Schrodinger equation tells us the same thing about time. [The partial of the wave funtion with respect to time equals the energy]-For clarification let me mention that I am thinking of the wave function to be the wave function of the whole universe. thus, the partial derivative of the psi of the universe with respect to time equals the kinetic and potential energy of the universe. So, time changes only because the universe has energy. [I know this sounds deterministic, but after all that is what the Schrodinger equation says. I am not asking how it relates to Heisenberg.]