Infobox holiday fixed day

Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally through earthday.org including 1 billion people in more than 193 countries.

mathematical holiday on March 14

world day

The Day of the Dead is a holiday traditionally celebrated on November 1 and 2, though other days, such as October 31 or November 6, may be included depending on the locality. The multi-day holiday involves family and friends gathering to pay respects and remember friends and family members who have died. These celebrations can take a humorous tone, as celebrants remember amusing events and anecdotes about the departed. It is widely observed in Mexico, where it largely developed, and is also observed in other places, especially by people of Mexican heritage. The observance falls during the Christian period of Allhallowtide. Some argue that there are Indigenous Mexican or ancient Aztec influences that account for the custom, though others see it as a local expression of the Allhallowtide season that was brought to the region by the Spanish; the Day of the Dead has become a way to remember those forebears of Mexican culture. The Day of the Dead is largely seen as having a festive characteristic.

day celebrated on October 4

world day

world day

international holiday celebrating the bicycle

world day

annual celebration held on May 5

international day of remembrance

Canadian national holiday on July 1

an observance of when copyrights expire and works enter into the public domain.

Groundhog Day is a tradition observed regionally in the United States and Canada on February 2 of every year. It derives from the Pennsylvania Dutch superstition that if a groundhog emerges from its burrow on this day and sees its shadow, it will retreat to its den and winter will go on for six more weeks; if it does not see its shadow, spring will arrive early. In 2026, the shadow was seen by Punxsutawney Phil, auguring six more weeks of winter.

Lupercalia, also known as Lupercal, was a pastoral festival of Ancient Rome observed annually on February 15 to purify the city, promoting health and fertility. Lupercalia was also known as , after the purification instruments called , the basis for the month named .

day to memorialize those who have been killed as a result of transphobia

series of popular demonstrations in the Philippines in 1986 that overthrew Ferdinand Marcos

world day on 11 February

annual holiday occurring on March 31 dedicated to celebrating transgender people and raising awareness of discrimination faced by transgender people worldwide

day that is marked in Japan, South Korea, Taiwan, and China on March 14, one month after Valentine's Day

January 1, a national holiday in Japan (the first day of the first month of the East Asian Lunar calendar prior to 1873)

International Day established to recognise the importance of milk as a global food

LGBTQ awareness and celebration day

ancient Northern Hemisphere spring festival and usually a public holiday

commemoration of Wikipedia founding in 2001

world day

international observance commemorated every year on 25 April that recognizes global efforts to control malaria

international event for the promotion of jazz music

International day

annual observance on May 4th to celebrate the Star Wars media franchise

UN world day

is a traditional Japanese rite of passage and festival day for three- and seven-year-old girls, and five-year-old and sometimes three-year-old boys. It is held annually on November 15 and celebrates the growth and well-being of young children. As it is not a national holiday, it is generally observed on the nearest weekend.

public holiday in Japan

is celebrated every December 18

public holiday in Finland held on 6 December to celebrate the country's independence

parodic holiday created in 1995

national holiday in Japan

annual awareness day to highlight the importance of good menstrual hygiene management

International observance, 30 August

unofficial commemoration of the Avogadro constant

world day

annual event

Palestinian and Arab-Israeli day of commemoration

international observance, 24 October

public holiday observed in Galicia, Spain

Christian feast day celebrating the birth of John the Baptist

observed annually around the planet on October 1

UN commemorative day, October 13th

one of several holidays dedicated to parents

national observance in the United States

U.S. holiday commemorating the Alaska Purchase

September 23

holiday honouring relationships of siblings

is celebrated every June 6

Christian observance that commemorates the execution of the male children in Bethlehem as told in Matthew 2:16

In ancient Roman religion, the Matronalia (or Matronales Feriae) was a festival celebrating Juno Lucina, the goddess of childbirth ("Juno who brings children into the light"), and of motherhood (mater is "mother" in Latin) and women in general. In the original Roman calendar traditionally thought to have been established by Romulus, it was the first day of the year. As the first day of March (Martius), the month of Mars, it was also the Feriae Martis.

Holiday in Ukraine

national holiday in the Philippines

is celebrated every April 20

Festivus () is a secular holiday celebrated on December 23 as an alternative to the perceived pressures and commercialism of the Christmas season. Originally created by author Daniel O'Keefe, Festivus entered popular culture after it was made the focus of the 1997 Seinfeld episode "The Strike", which O'Keefe's son, Dan O'Keefe, co-wrote.