Sir, May you please elaborate why the change in timings are needed? So that we could get some exact idea of yours... Because arriving at 13:00 hrs, I do not see any meaning which pushes early departure in the night... Because Delhi and Mumbai are such big cities which needs 2 to 3 hrs local travel to catch the trains, after finishing works. So the current timings of post 23:00 hrs are much better in my view..