I tore my ACL (complete tear, patella tendon), MCL (minor tear, bioscrews and stitches), and meniscus (had to trim 1/3). How long before I can run?

Varies. It varies somewhat based upon surgical preference, you certainly would want to clear it with your surgeon. all that being said, 12 weeks would be a general time frame in which one could often return to light jogging with those injuries/surgery.