June 5; December 19 (Eastern Orthodox church)
The feast day of Saint Boniface, the Apostle of Germany, is on June 5.
It is June 5th, the day he died.
It is June 5th everywhere in the world.
The saint's feast day is the day that that particular saint may be memorialized at Mass. It is sometimes the anniversary day of when the saint was reborn into Heaven (died) but that is not a hard fast rule. On any given day there are dozens of saints who appear on the calendar. The parish can choose to honor one saint in particular from the list for the day. Some feasts are mandatory and must be celebrated.
Saint Patrick's Day
Saint Nicholas Day is celebrated world-wide on December 6.
The feast of Saint Patrick is celebrated on March 17.
Saint David's Day is celebrated on the first day of March.
Saint Patrick's Day was first celebrated in America in 1737 Boston, Massachusetts.
The feast day of Saint George is on April 23.
Saint Sebastian's feast day is celebrated on the 20th January each year.Saint Sebastian's feast day is celebrated on the 20th January each year.
Saint Patrick's Day is widely celebrated in the USA.