The period of a year and a day was a conventional period widely employed in Europe to represent a significant amount of time.
The Church of Jesus Christ of Latter-day Saints | Green Day | One Day International | New Year's Day | Boxing Day | Memorial Day | Seventh-day Adventist Church | New Year's Eve | Labor Day | Doris Day | Earth Day | May Day | New Year | Sandra Day O'Connor | Chinese New Year | Valentine's Day | Record Store Day | One Year Later | Mother's Day | Ferris Bueller's Day Off | Bastille Day | Six-Day War | April Fools' Day | Australia Day | Father's Day | Brightest Day | Big Day Out | Macy's Thanksgiving Day Parade | Korea under Japanese rule | Canada Day |