Gumiguru 15 (kana Chishona chizere : musi wechiguimineshanu muMwedzi waGumiguru ) musi we gore we mazanamairinemakumimasere-nesere (kana musi wechi mazanamairinemakumimasere-nepfumbamwe pa gore remucharikwa ) mu Karenda ya Gregori ; pasara mazuva Makumimanomwe-nenomwe kusvika pakupera kwegore.