Early in the film, when Beasley, Billie Ellis, and Link Jones are left behind by the train after the robbery attempt, they stand on the railroad tracks debating what to do next. As they do so, the shadow of the boom mic is visible above their own shadows on the ground behind them.
When Link and Trout arrive at Lasso, their shadows are to the right of screen, indicating mid-morning. As they get to the bank, their shadows are nearly under them, indicating the sun nearly directly overhead or a time of around noon. The shadows are in the same place when Trout flees from the bank. However, when Trout reaches the edge of town and dies, the shadows are again to the right of screen and are in the same direction when Link finds him, and when Claude and Ponch arrive in town.