Important Days in December 2025: Key National & International Dates to Remember

December, the final month of the year, is filled with festivals, global observances, historical anniversaries, and awareness days. Whether you’re preparing for competitive exams or planning academic activities, this guide provides the complete list of important days in December 2025 with their meaning and significance.

Important Days & Their Significance (December 2025)

1 December – World AIDS Day

Raises awareness about HIV/AIDS and supports people affected globally.

2 December – National Pollution Control Day

Observed in memory of the Bhopal Gas Tragedy victims and promotes environmental protection.

2 December – International Day for the Abolition of Slavery

Highlights modern slavery and human exploitation issues.

2 December – World Computer Literacy Day

Focuses on spreading digital empowerment and computer skills.

3 December – International Day of Persons with Disabilities

Promotes equal rights and inclusion for people with disabilities.

4 December – Indian Navy Day

Celebrates the achievements and role of the Indian Navy.

5 December – International Volunteer Day

Recognizes the efforts of volunteers worldwide.

5 December – World Soil Day

Raises awareness about soil health and environmental sustainability.

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

Tribute to the creator of the Indian Constitution.

7 December – Armed Forces Flag Day

Honors the courage and sacrifice of Indian armed forces.

7 December – International Civil Aviation Day

Recognizes the importance of global aviation for development.

8 December – Bodhi Day

Celebrates the enlightenment of Gautama Buddha.

9 December – International Anti-Corruption Day

Promotes global efforts to curb corruption.

10 December – Human Rights Day

Commemorates the Universal Declaration of Human Rights.

10 December – Death Anniversary of Alfred Nobel

Honors the founder of the Nobel Prizes.

11 December – International Mountain Day

Highlights the importance of mountain ecosystems.

11 December – UNICEF Day

Celebrates UNICEF’s global work for children.

12 December – Universal Health Coverage Day

Promotes access to affordable healthcare for all.

13 December – National Horse Day

Recognizes the cultural and historical significance of horses.

13 December – U.S. National Guard Birthday

Honors one of the oldest U.S. military organizations.

14 December – National Energy Conservation Day

Encourages energy-efficient practices.

14 December – Hanukkah Begins

Jewish festival celebrating the rededication of the Second Temple.

16 December – Vijay Diwas

Marks India’s victory in the 1971 war and creation of Bangladesh.

18 December – Minorities Rights Day (India)

Highlights the safety and rights of minority communities.

18 December – International Migrants Day

Focuses on the rights and challenges of migrants worldwide.

19 December – Goa Liberation Day

Celebrates liberation from Portuguese rule in 1961.

20 December – International Human Solidarity Day

Promotes unity and collective action globally.

21 December – Blue Christmas

Supports people dealing with grief during the festive season.

21 December – December Solstice

Marks winter in the Northern Hemisphere, summer in the Southern Hemisphere.

21 December – World Saree Day

Celebrates the elegance and cultural value of the saree.

22 December – National Mathematics Day

Birth anniversary of mathematician Srinivasa Ramanujan.

23 December – Kisan Diwas (Farmer’s Day)

Celebrates farmers and commemorates Chaudhary Charan Singh’s birth anniversary.

24 December – National Consumer Rights Day

Highlights consumer protection and legal rights.

24 December – DMRC Foundation Day

Marks the first inauguration of the Delhi Metro.

24 December – Christmas Eve

Begins Christmas celebrations worldwide.

25 December – Christmas Day

Marks the birth of Jesus Christ.

25 December – Good Governance Day

Honors Atal Bihari Vajpayee and promotes accountability in governance.

26 December – Veer Bal Diwas

Tribute to the martyrdom of Guru Gobind Singh Ji’s four sons.

26 December – Boxing Day

Traditionally a day of charity and giving.

27 December – International Day of Epidemic Preparedness

Stresses the importance of epidemic prevention and response.

28 December – Ratan Tata Birthday

Celebrates the iconic industrialist and philanthropist.

29 December – International Cello Day

Honors the legacy of cellist Pablo Casals.

31 December – New Year's Eve

The last day of the year celebrated worldwide.

Complete List of Important Days in December 2025