A trial date has finally been set in the Dallas Goedert bar fight case ... months after the Philadelphia Eagles tight end was knocked out in an incident caught on video.

Goedert was socked in the face during a June 20 altercation at a South Dakota bar ... after getting into it with another group.

The man who was arrested and charged for punching Goedert, 30-year-old Kyle Hadala, got hit with a simple assault charge ... and faces jail time if convicted.

Goedert -- who was hospitalized for injuries sustained during the incident -- was neither arrested nor charged with a crime.