Preheat the oven to 300 degrees F (150 degrees C).

Score 1/2 inch slits in pork roast; place in a baking dish.

Combine honey, mustard, pepper, thyme, and salt in a small bowl until well blended; brush over roast, working well into slits. Set aside remaining glaze.

Bake in the preheated oven for 1 hour. Remove roast from oven; flip and brush remaining glaze over roast. Continue baking until an instant-read thermometer inserted into the center reads 145 degrees F (63 degrees C), 45 to 60 minutes more. Let stand 15 minutes before slicing.