In Mumbai, in older days even SF Trains like Vidarbha Express use to arrive about 45 mins early I remember. I was coming back from Nagpur to Mumbai and instead of her usual 5 am arrival, she had arrived around 4 am. While August Kranti has lots of time in which she can run speedily and arrive BCT about 1+ hrs early everyday but usually she is made to run slowly as she get into Mumbai surburbs, according to the timetable.