When does Gawain leave Arthur's court in Sir Gawain and the Green Knight?
In Sir Gawain and the Green Knight, Gawain leaves the court the following November, almost a year after the Green Knight visits the court. Gawain is under obligation to search out the Green Knight and meet with him twelve months from the day Gawain cut off the Green Knight's head in Arthur's court.
Gawain spends weeks looking for the Green Knight's Green Chapel. He finally finds shelter in a wondrous castle, and stays there for three days, On the fourth day he sets out to find the Green Knight.
check Approved by eNotes Editorial