We just got a phone call from Amtrak to inform us of schedule changes on the CZ for our trip leaving SLC on 5 JUL to SFP and returning 8 JUL. We now arrive in EMY at 4:49pm (was 5:09) and get on the bus at 5pm arrrive at SFP at 6:10 (was 6:35). On the way back we leave SFP 20 min earlier at 7:30am and arrive in EMY at 8:45am and depart on the CZ at 9:15am (was 9:35) and arrive in SLC at 3:15am (was 3:35). Basically they moved the schedule up about 20 minutes for reasons they couldn't say, I would assume dispatching and I would assume this means an earlier CHI departure, but she didn't know off hand.