This year I remembered a conversation that member acelafan and I had about Amtrak's time adjustments when Standard Time becomes Daylight Time, so I'm adjusting schedules accordingly.
This is not about the Arizona or Indiana time zones. It's about the missing hour. As you know, on Sunday, 3/12/2017, at 2.01 a.m., time instantaneously jumps ahead to 3.01 a.m. Consider train 48 which normally arrives at Toledo at 2.50 a.m. and departs at 3.20 a.m. Within ARROW, the heart of Amtrak's reservation system, time is, for the lack of a better word, "undefined" between 2.01 a.m. and 3.01 a.m. Therefore, ARROW does not allow any train to be scheduled to arrive or depart during that period. On the morning of the twelfth, that arrival time cannot exist within ARROW. So, what to do? Well, Amtrak rescheduled the train to arrive at Toledo at 3.50 a.m. and they left the departure time as 3.20 a.m. In other words, the train is scheduled to depart 30 minutes before it is scheduled to arrive.
This wreaks of Einstein's Theory of Special Relativity thought experiments such as when trying to capture a car traveling at nearly the speed of light when it attempts to drive through a building with entrance and exit doors closing instantaneously and simultaneously as soon as the car enters the building. The car isn't captured - it's already gone.
There are other examples like train 48 this weekend. So if you call up Julie to find out where your train is, and time has changed for that train, you'd better be very careful, or else you'll miss it.
jb