Black Day (Korean: 블랙데이) is an unofficial holiday observed on April 14 each year. It is mostly observed in South Korea by singles. The day is associated with Valentine's Day and White Day as a holiday on the 14th day of the month. On this day, people who did not receive gifts on the previous two days gather and eat jajangmyeon, noodles with black sauce. This day is specifically for single people.