I was at Smelter, Utah (between Tooele and Salt Lake City) and noticed over by the railroad tracks that there was a sign saying it was the start of the Pacific Time Zone. That surprised me since that time zone doesn’t start until you leave Utah into Nevada. Maybe the railroad has a different boundary than the rest of us? I can imagine how that would be helpful for the stations and junctions out in the desert but I never knew about anything like that. If you know, please share.