Durham Day, also known as Saint Cuthbert’s Day, is observed in Durham, England, every March 20. This day commemorates Saint Cuthbert, a revered Anglo-Saxon monk and bishop of Northumbria, who died on this date in 687. Celebrations typically include a procession from the market square to Durham Cathedral, symbolizing the arrival of Saint Cuthbert's relics in the city. Special prayers are held at the saint's resting place, along with various performances organized by the cathedral. The relics of Saint Cuthbert were housed at Lindisfarne for centuries before being moved to Durham, where the construction of Durham Cathedral began in 1093. The observance highlights the historical significance of Saint Cuthbert as the patron saint of Northumbria and reflects the local community's religious heritage.