Each new day offers an opportunity to be grateful for the water that sustains all life on our blue planet, but these special celebratory Blue Days can help to support deeper learning and reflection.
Subscribe to the Calendar of Blue Days
J A N U A R Y
January 1
NEW YEAR’S DAY
Get rolling! Start the New Year out right by doing one simple thing to help your Blue Marble.
January 21
NATIONAL ANGEL ISLAND DAY commemorates the 100th anniversary of the Angel Island Immigration Station’s opening and shares the history of immigration to the West Coast of the United States.
F E B R U A R Y
February 14
VALENTINE’S DAY is a special day for the Pale Blue Dot. Craft your own Blue Marble Valentine.
February 16
WORLD READ ALOUD DAY
Blue Mind is better when shared with friends. Read a favorite book aloud.
3rd Sunday in February
WORLD WHALE DAY is held to inspire us with the majesty and beauty of the largest creatures in our oceans.
M A R C H
March 21
WORLD POETRY DAY celebrates one of humanity’s most treasured forms of cultural and linguistic expression and identity – Poetry
March 22
WORLD WATER DAY celebrates water and inspires action to tackle the global water crisis, to support the achievement of Sustainable Development Goal (SDG) 6: water and sanitation for all by 2030.
A P R I L
April 22
EARTH DAY marks the anniversary of the birth of the modern environmental movement in 1970. Join the billions who participate annually on Earth Day, and every other day, to protect the planet.
April 26
INTERNATIONAL SEEDS DAY highlights the vital role seeds play in ensuring food security, biodiversity, and sustainable agriculture.
M A Y
May 22
INTERNATIONAL DAY OF BIOLOGICAL DIVERSITY highlights the importance of ecosystems, species, and genetic diversity, by encouraging action to combat biodiversity loss and support sustainable development.
May 23
143 DAY is a special day celebrates the simple yet powerful message that Fred Rogers held close to his heart — the number 143 represents the number of letters in the words “I love you.”
May 27
RACHEL CARSON DAY honors the pioneering marine biologist and author who launched the modern environmental movement on her birthday.
J U N E
June 8
WORLD OCEAN DAY unites millions — across the globe and throughout the year — to protect our blue planet. One Ocean, One Climate, One Future — Together
June 11
INTERNATIONAL DAY OF PLAY celebrates play and efforts to preserve, promote, and prioritize playing so that all people, especially children, can reap the rewards and thrive to their full potential.
June 16
WORLD SEA TURTLE DAY is June 16.
SEA TURTLE WEEK (June 8-16) highlights one of the seven sea turtle species each day along with one of the threats they face.
June 29
INTERNATIONAL MUD DAY brings people around the globe together in a day of splashing, rolling, squishing, sliding, making mud pies, and more!
J U L Y
July 4
INDEPENDENCE DAY recommended reading: Dr. Wallace J. Nichol’s 2010 essay, “Staring Down the Dragon Dependence Day.”
July 23
WORLD BLUE MIND DAY annually celebrates the emotional wellness benefits of time spent near, in, on and under healthy waters.
NATIONAL MARBLE DAY reminds us that there is much more to these little spheres than you might think. Although the game of marbles was originally played by children, it grew into a fun pastime for adults as well.
A U G U S T
August 9
INTERNATIONAL DAY OF THE WORLD’S INDIGENOUS PEOPLES promotes awareness of indigenous rights, cultures, and self-determination, focusing on combating marginalization and inequality.
August 19
WORLD HUMANITARIAN DAY is a day to honor those who step into crises to help others, and to stand with the millions of people whose lives hang in the balance.
August 27
WORLD LAKE DAY highlights the vital importance of lakes for freshwater, biodiversity, and climate regulation.
S E P T E M B E R
4th Sunday of September
WORLD RIVERS DAY celebrates the importance of rivers to foster greater public awareness and stewardship for river conservation worldwide.
September 14-20
NATIONAL ARTS IN EDUCATION WEEK celebrates the role of arts education as essential for building creativity, critical thinking, and equitable learning opportunities for all students.
September 21
INTERNATIONAL DAY OF PEACE is devoted to commemorating and strengthening the ideals of peace both within and among all nations and peoples.
O C T O B E R
October 4
WORLD ANIMAL DAY is an international day of action for animal rights and welfare celebrated annually on October 4, the feast day of Francis of Assisi, the patron saint of animals.
October 24-31
GLOBAL MEDIA & INFORMATION LITERACY WEEK is observed to raise awareness and celebrate the progress achieved towards Media and Information Literacy for all.
N O V E M B E R
November 19
WORLD TOILET DAY is held each year to celebrate toilets and raise awareness of people living without access to safely managed sanitation.
D E C E M B E R
December 1
ANTARCTICA DAY recognises the anniversary of the signing of the Antarctic Treaty in 1959, dedicating Antarctica as a “natural reserve, devoted to peace and science.”
December 10
HUMAN RIGHTS DAY commemorates the UN General Assembly’s adoption of the Universal Declaration of Human Rights (UDHR) on December 10, 1948. It champions inalienable rights—freedom, equality, and justice—that everyone is entitled to regardless of race, religion, or sex, promoting global advocacy against discrimination and injustice.