Important Days in December 2025, National and International Days List

Many Important Days in December 2025 are celebrated in India and around the world. These days focus on raising awareness, remembering events, and honoring people. From World AIDS Day and Human Rights Day to Christmas and New Year’s Eve, each day is special. Celebrating these days helps people learn, remember, and take part in important causes.

List of Important Days in December 2025

Here is the List of Important Days in December 2025, tabulated below. These days help in spreading knowledge and encourage participation in social, cultural, and global initiatives.

Important Days in December 2025 Details

1 December – World AIDS Day

World AIDS Day is observed every year on 1 December to raise awareness about HIV/AIDS, support people living with HIV, and remember those who have lost their lives to AIDS-related illnesses. It was first celebrated in 1988, and the 2025 theme is “Overcoming disruption, transforming the AIDS response.”

2 December – National Pollution Control Day

National Pollution Control Day is observed every year on 2 December in India to raise awareness about the harmful effects of pollution on the environment and human health. It also honors the memory of those who lost their lives in the Bhopal Gas Tragedy of 1984 and emphasizes the importance of pollution prevention and sustainable environmental practices.

2 December – International Day for the Abolition of Slavery

The International Day for the Abolition of Slavery is observed every year on 2 December to raise awareness about modern forms of slavery, including human trafficking, forced labor, and child marriage. It highlights global efforts to end exploitation and protect human rights. The day also commemorates the adoption of the UN Convention for the Suppression of the Traffic in Persons in 1949.

2 December- World Computer Literacy Day

This day is observed on 2 December each year to promote digital skills and computer literacy worldwide. It aims to bridge the digital divide.

3 December – World Day of the Handicapped / International Day of Persons with Disabilities

World Day of the Handicapped / International Day of Persons with Disabilities is observed every year on 3 December. This day aims to promote awareness, understanding, and support for people with disabilities. It highlights the importance of inclusivity, accessibility, and equal opportunities for persons with disabilities in all aspects of society.

4 December- Indian Navy Day

Every year on 4 December, Navy Day is observed to recognise the achievements of the Indian Navy. This day was chosen as on that day in 1971, during Operation Trident, including the 1971 Indo-Pak war operations.

5 December – International Volunteer Day

International Volunteer Day is observed every year on 5 December to recognise and promote the invaluable contributions of volunteers worldwide. It encourages people to engage in voluntary service, support communities, and foster social development and solidarity.

5 December – World Soil Day

World Soil Day is observed every year on 5 December to emphasise the crucial role of healthy soil in food security, ecosystems, and human well-being. It was proposed by the International Union of Soil Sciences in 2002 and officially adopted by the UN General Assembly in 2014.

6 December – B.R. Ambedkar’s Death Anniversary

December 6, observed as Mahaparinirvan Diwas, commemorates Dr. B.R. Ambedkar, the chief architect of the Indian Constitution. The day honors his contributions as a social reformer and his lifelong advocacy for equality and justice.

6 December- National Microwave Oven Day

National Microwave Oven Day is observed annually on 6 December to celebrate the invention of the microwave oven and its revolutionary impact on modern cooking. The microwave oven, invented by Percy Spencer in 1945, transformed meal preparation.

7 December- Armed Forces Flag Day

Armed Forces Flag Day is observed in India on 7 December to honor the bravery of soldiers and martyrs who protect the nation. Funds are also collected from the public to support ex-servicemen and their families.

7 December – International Civil Aviation Day

Observed worldwide on 7 December, this day highlights the importance of civil aviation in connecting people, boosting economies, and supporting international trade.

8 December – Bodhi Day

Bodhi Day is celebrated on 8 December to honor Gautam Buddha and his teachings. It marks the day Buddha attained enlightenment and is observed in many countries with meditation and reflection.

9 December – International Anti-Corruption Day

This day is observed on 9 December to raise awareness about corruption and its harmful effects on society, governance, development, and equality.

10 December – Human Rights Day

Celebrated on 10 December, Human Rights Day marks the adoption of the Universal Declaration of Human Rights in 1948. It promotes the protection of fundamental rights and freedoms for all people.

10 December – Death Anniversary of Alfred Nobel

Alfred Nobel, inventor of dynamite and founder of the Nobel Prizes, passed away on 10 December 1896. He is remembered for his scientific contributions and the prestigious awards established in his name.

11 December – International Mountain Day

Observed on 11 December, this day educates people about the importance of mountains in providing water, food, clean energy, and recreation.

11 December – UNICEF Day

UNICEF Day is observed on 11 December to recognize the efforts of the United Nations International Children’s Emergency Fund in protecting children worldwide.

12 December – Universal Health Coverage Day

Observed on 12 December, this day promotes awareness about strong health systems and universal health coverage to ensure everyone has access to quality healthcare.

13 December – National Horse Day

In the U.S., 13 December celebrates National Horse Day to honor the contributions of horses to culture, history, and the economy.

13 December – U.S. National Guard Birthday

The U.S. National Guard celebrates its birthday on 13 December to mark its establishment in 1636 and its role in national defense and emergency support.

14 December – National Energy Conservation Day

Observed on 14 December in India, this day promotes awareness about saving energy and using it efficiently in daily life.

14 December – Hanukkah Beginning

Hanukkah, the Jewish festival of lights, begins on 14 December this year. It celebrates the rededication of the Second Temple in Jerusalem with menorah lighting, games, and festive meals.

16 December – Vijay Diwas

Vijay Diwas is observed on 16 December in India to honor the martyrs of the 1971 war and celebrate the country’s victory.

18 December – Minorities Rights Day in India

This day is observed on 18 December to promote the rights and safety of minority communities through campaigns and awareness programs.

18 December – International Migrants Day

International Migrants Day is observed on 18 December to raise awareness about migrant rights and remember those who lost their lives seeking safety.

19 December – Goa Liberation Day

Goa Liberation Day on 19 December marks the end of Portuguese rule in 1961 and celebrates the role of the Indian armed forces in freeing Goa.

20 December – International Human Solidarity Day

Observed on 20 December, this day highlights the importance of unity in diversity and encourages people to fight poverty, hunger, and disease together.

21 December – Blue Christmas

Blue Christmas, observed around 21 December, offers support to people who find the holiday season difficult, especially during the longest night of the year.

21 December – December Solstice

The December Solstice on 21 December marks the start of winter in the Northern Hemisphere and summer in the Southern Hemisphere, with the shortest day and longest night in the north.

21 December – World Saree Day

World Saree Day is celebrated on 21 December to honor the elegance and cultural significance of the traditional Indian saree.

22 December – National Mathematics Day

Observed on 22 December, this day commemorates the birth anniversary of mathematician Srinivasa Ramanujan and his contributions to mathematics.

23 December – Kisan Diwas / National Farmers’ Day

Kisan Diwas is celebrated on 23 December to honor farmers and the birth anniversary of former Prime Minister Chaudhary Charan Singh. Events focus on agriculture and farming education.

24 December – National Consumer Rights Day

Observed on 24 December, this day raises awareness about consumer rights and the importance of protecting them under the Consumer Protection Act.

24 December – DMRC Foundation Day

DMRC Foundation Day on 24 December commemorates the inauguration of the Delhi Metro’s Red Line in 2002, marking a milestone in India’s urban transport.

24 December – Christmas Eve

Christmas Eve, on 24 December, is the evening before Christmas Day, celebrated with family gatherings, prayers, and festive traditions.

25 December – Christmas Day

Christmas Day celebrates the birth of Jesus Christ on 25 December, observed worldwide with joy, gifts, and religious ceremonies.

25 December – Good Governance Day (India)

Observed on 25 December, Good Governance Day honors the birth anniversary of Atal Bihari Vajpayee and promotes accountability and transparency in governance.

26 December – Veer Bal Diwas

Veer Bal Diwas on 26 December pays tribute to the courage of Guru Gobind Singh Ji’s four sons who sacrificed their lives for their faith.

26 December – Boxing Day

Boxing Day, on 26 December, is traditionally a day to give gifts and money to service workers and celebrate post-Christmas generosity.

27 December – International Day of Epidemic Preparedness

Observed on 27 December, this day raises awareness about epidemic preparedness, sharing scientific knowledge, and improving global health response.

28 December – Ratan Tata Birthday

Ratan Tata, the renowned Indian industrialist and philanthropist, is celebrated on 28 December for his contributions to industry, entrepreneurship, and society.

29 December – International Cello Day

International Cello Day on 29 December honors the legacy of cellist Pablo Casals and celebrates the music and artistry of the cello.

31 December – New Year’s Eve

New Year’s Eve, on 31 December, marks the last day of the year according to the Gregorian calendar. People celebrate with parties, music, and festivities to welcome the New Year.

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