Monday
March 21
36 holidays and observances fall on this day.
Act Happy Day
Act Happy Day falls on the third Monday of March, turning the day into a beacon of positivity and cheerfulness worldwide.
International Day of Forests (World Forestry Day)
International Day of Forests is a global environmental holiday held every March 21 to promote the protection and sustainable management of trees.
World Down Syndrome Day
World Down Syndrome Day promotes global awareness and inclusion every year on March 21.
World Poetry Day
World Puppetry Day celebrates the ancient art of puppet theater every year on March 21.
International Color Day
International Color Day is a global celebration of the visual spectrum and its impact held every March 21.
Big Bang Day
Big Bang Day is a scientific observance held every March 21 to honor the theories and discoveries regarding the origin of the universe.
World Tattoo Day
World Tattoo Day celebrates the art and culture of body ink every year on March 21.
Slytherin Pride Day
Slytherin Pride Day honors the ambitious and resourceful Hogwarts house every March 21.
Memory Day
Memory Day is a health and cognitive awareness holiday held every March 21 to promote brain fitness and honor human memory.
World Puppetry Day
World Puppetry Day celebrates the ancient art of puppet theater every year on March 21.
Twitter Day
Twitter Day celebrates the anniversary of the first tweet every year on March 21.
WE Day
WE Day celebrates youth volunteerism and social action every year on March 21.
Early Music Day
Early Music Day is a global celebration of historical music held every March 21 on the birthday of Johann Sebastian Bach.
World Wood Day
World Wood Day promotes the sustainable use and cultural value of wood every March 21.
International Day for the Elimination of Racial Discrimination (International Race Relations Day)
The International Day for the Elimination of Racial Discrimination is a UN observance held every March 21 to combat racism and inequality.
World Vermouth Day
World Vermouth Day celebrates the botanical complexity of fortified wine every March 21.
National Flower Day
National Flower Day is a seasonal observance held every March 21 to appreciate the beauty and ecological importance of flowers.
National Rosie The Riveter Day
National Rosie the Riveter Day honors women's wartime contributions every March 21.
National Fragrance Day
National Fragrance Day is an annual celebration held on March 21 to honor the history, science, and emotional impact of the world of scents.
National Single Parent Day
National Single Parent Day honors solo caregivers every year on March 21.
Spring Fairy Fun Day
Spring Fairy Fun Day celebrates the magic of nature and new beginnings every March 21.
National Countdown Day
National Countdown Day is a celebration of anticipation and time-tracking held annually on March 21.
National French Bread Day
National French Bread Day is a culinary holiday held every March 21 to celebrate the traditional four-ingredient crusty loaf.
Wellderly Day
Wellderly Day is observed on the third Monday in March to celebrate healthy and active aging for seniors.
National Crunchy Taco Day
National Crunchy Taco Day is a food holiday held annually on March 21 to celebrate the history and texture of the hard-shell taco.
National Aries Day
National Aries Day celebrates the first sign of the zodiac and the start of the astrological year every March 21.
National Common Courtesy Day
National Common Courtesy Day is an annual reminder to practice respect and kindness held every March 21.
National Renewable Energy Day
National Renewable Energy Day promotes sustainable power sources every year on March 21.
National Teenager Day
National Teenager Day recognizes the achievements and challenges of youth every March 21.
National California Strawberry Day
National California Strawberry Day celebrates the start of the spring berry harvest every March 21.
National Healthy Fats Day
National Healthy Fats Day is a nutrition awareness event held every March 21 to promote the benefits of natural fats in a balanced diet.
Walk in the Sand Day
Walk in the Sand Day is a wellness holiday encouraging barefoot beach walks on the Saturday after the March Equinox.
Education Freedom Day
Education Freedom Day is an annual event held on March 21 to promote free software and open-source resources for global learning.
Credit Card Reduction Day
Credit Card Reduction Day is a financial awareness event held every March 21 to encourage the repayment of high-interest debt.
National Day Of Action On Syringe Exchange
National Day Of Action On Syringe Exchange is observed on March 21 each year to advocate for the expansion and protection of harm reduction services. This day highlights the importance…
Namibia Independence Day
Namibia Independence Day celebrates the nation's 1990 transition to a sovereign state every year on March 21.
Coming up next
World Water Day
World Water Day is an annual UN observance on March 22 that advocates for the sustainable management of global freshwater resources.
International Day Of The Seal
International Day of the Seal is an annual event on March 22 dedicated to raising awareness for the conservation of seals worldwide.
Daffodil Day
Daffodil Day is an annual fundraising event on March 22 that uses the yellow flower as a symbol of hope in the fight against cancer.
Gryffindor Pride Day
Gryffindor Pride Day is a fan celebration on March 22 that honors the house of bravery and courage from the Harry Potter series.
World Day of Metta
World Day of Metta is an annual celebration on March 22 that encourages the practice of universal loving-kindness and compassion.
International Goof-off Day
International Goof-off Day is an annual celebration on March 22 that encourages people to ignore their chores and have fun.
International Talk Like William Shatner Day
International Talk Like William Shatner Day is a fun celebration held on March 22 to mimic the actor's unique speaking style.
Baltic Sea Protection Day
Baltic Sea Protection Day is an international environmental observance held every year on March 22 to focus attention on the unique ecological challenges facing the world's largest brackish water body.…
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