Preheat the oven to 325 degrees F (165 degrees C).

Combine sage, salt, and thyme in a small bowl. Rub 1/2 of the sage mixture all over turkey, then place turkey in a large roasting pan.

Bring butter, orange juice, marmalade, honey, and orange sections to a boil in a saucepan over medium-high heat. Reduce heat and simmer uncovered until thickened, stirring occasionally, 15 to 20 minutes. Stir in remaining sage mixture. Brush over turkey, reserving leftover glaze for basting.

Bake turkey in the preheated oven for 5 hours and 30 minutes, basting every 30 minutes. Cover turkey lightly with foil and continue baking until no longer pink at the bone and the juices run clear, 30 minutes to 1 hour, occasionally brushing with glaze. An instant-read thermometer inserted into the thickest part of the thigh, near the bone, should read 165 degrees F (74 degrees C). Remove turkey from the oven, cover with a doubled sheet of aluminum foil, and allow to rest in a warm area before slicing, 10 to 15 minutes.