As for the "local", have not the faintest when east bound, but have run into it on occasion around 20:00. That being said, I seem to remember on occasion having a meal at "Track Side" (no longer there, burned to the ground) in Cooks, and having seen the west bound around 19:00 or so.
Walking the dog, at Oh clock dark, a year or so ago, on occasion would here a train blowing for the Thompson Crossing, and/or the Cooks crossing. Being retired and not wearing a watch, the time was.....Oh clock dark. Repeating myself, sorry.