— Japan
March 3rd: Girls' Day: This festival is specifically for little girls. On this day, parents who have daughters will set up a display table at home, on which they place beautiful girl dolls dressed in Japanese kimonos as gifts for their daughters.
May 5th: Boys' Day: On the day of the festival, families with sons hang "carp streamers" in front of their homes, symbolizing the saying "the carp jumps over the dragon gate." The carp streamers are made from cloth or silk, shaped like "hollow carp," and come in three colors: black, red, and blue-green. Black represents the father; red represents the mother; and blue-green represents the boy himself. The more blue-green flags there are, the more boys are in the family. In the hearts of the Japanese, carp symbolize strength and courage.
— South Korea
South Korea's Children's Day originated from "Boys' Day" in 1923. It is also a public holiday in South Korea, held every May 5th. On this day, children can enjoy themselves to their heart's content, and parents prepare the gifts that children want most. Many children also wear Hanfu on this day to experience traditional Korean culture.
— Colombia
Colombia has set July 4th as Children's Day each year. On this day, schools across the country hold various lively celebration activities. Children often wear all kinds of masks and play as clowns in the streets, which is very fun.
— Brazil
Brazil's Children's Day falls on August 15th, which is also Brazil's "National Vaccination Day." Therefore, on this day, doctors across the country give children check-ups and administer vaccines to children under five years old to prevent polio, showing the government's great concern for children's health. Additionally, the "Feast of the Virgin Mary" on October 12th is often celebrated as Children's Day, with some festive activities.
— Sweden
Sweden also divides Children's Day into more specific dates. August 7th is "Boy's Day," also known as "Lobster Day," meaning encouraging boys nationwide to learn the brave spirit of lobsters. On this day, children dress up as lobsters and perform lively and cute performances.
— Russia
Russia's Children's Day coincides completely with the international calendar, which is June 1st. When Children's Day comes, children across Russia joyfully celebrate their festival, perform ethnic songs and dances, and schools hold celebrations.
— United Kingdom
In August 1925, representatives from 54 countries held the "International Congress for the Happiness of Children" in Geneva, Switzerland, and passed the "Geneva Declaration on the Protection of Children." The declaration called for urgent attention to children's spiritual enjoyment, relief for poor children, and opportunities for children to earn a living. After the conference, governments of various countries successively established their own "Children's Day" to encourage children, making them feel proud, happy, and joyful, and prompting society to value and care for children. The UK government set July 14th every year as the UK Children's Day.
— Germany
During the Cold War, East and West Germany had completely different practices for Children's Day. First, the dates were different: East Germany set it on June 1st, while West Germany set it on September 20th; the names were also different: East Germany called it "International Children's Day" (internationaler Kindertag), while West Germany called it "World Children's Day" (Weltkindertag). Additionally, there were differences in the traditions of the festival.
— Islamic Countries
Most Islamic countries set the 14th day after the end of Ramadan as "Candy Day," which is also the happiest Children's Day for children.
— African Countries
Most countries in Western Africa have a special "Children's Carnival," usually lasting a month. Africans are good at singing and dancing, and during the "Children's Carnival," despite differences in living conditions, all children can enjoy themselves in a lively and bustling atmosphere.