Important Days in December 2025: National and International Special Days and Dates List

Important Days & Dates in December 2025:December is the twelfth and final month of the year in the Julian and Gregorian calendar. It is also the ultimate month of the year.

The length of the month of December is 31 days. December is usually abbreviated as ‘Dec’.

It doesn’t precede any month since it is the last month and succeeds the month of November in the traditional Gregorian calendar.

Important Days in December 2025: National and International Special Days and Dates List

December is also one of the 7 months in the traditional Gregorian Calendar that has 31 days. December also stands as one of the crucial months in the global calendar packed with national and international observances spanning education, health, peace and social awareness.

There are many important days and events that are observed in India on a national level and international and world level in the month of December 2025.

The name December comes from the Latin word ‘Decem’ which actually means ‘ten’. It was originally the tenth month in the early Roman Romulus calendar until the advent of the Gregorian calendar.

December is the first month of winter in the Northern Hemisphere and the first month of summer in the Southern Hemisphere. December contains the winter solstice in the Northern Hemisphere, the day with the fewest daylight hours and the summer solstice in the Southern Hemisphere, the day with the most daylight hours (Excluding polar regions in both cases)

The period December to January was popularly referred to as ‘Geolamonap’ by the Anglo-Saxons meaning ‘Yule month’ in English.

December also typically marks the beginning of the season of Advent according to the Catholic tradition.

Some of the notable important days of national and international importance in December 2025 include World AIDS Day, BSF Raising Day, SSB Raising Day, International Day of Banks, Good Governance Day, Kisan Diwas, Mahaparinirwan Diwas, National Pollution Control Day, World Computer Literacy Day, Indian Navy Day, Indian Navy Submarine Day, World Soil Day, Indian Armed Forces Flag Day, International Civil Aviation Day, Human Rights day, Alfred Nobel Day, UNICEF day, Universal Health Coverage Day, Goa Liberation Day, National Mathematics Day, Vijay Diwas, International Human Solidarity Day, December Solstice, National Consumer Rights Day, etc.

Remembering the Important Days in December 2025 is imperative for students and government competitive exam aspirants preparing for Bank, Intelligence Bureau (IB ACIO, IB Junior Intelligence Officer (JIO), IB Security Assistant, IB MTS), Insurance, SSC, TNPSC, Indian Railways, TNUSRB SI/PC Police, TNTET, Karnataka PSC and other PSC and Central Govt. Exams.

Aspirants must therefore be minutely aware of the list of important national and international days with special relevance and their themes of December month in 2025.

In Bank and government competitive exams, there will typically questions based on the ‘Important Days and Dates’ topic in the Current Affairs / General Awareness section. Here in this article, Veranda RACE has compiled a comprehensive list of important days and dates with special references to their importance and their themes (if any) in December month in 2025 that will help in the preparation for various Bank and Government competitive exams, including UPSC, SSC, NDA, CDS, TNPSC, Bank, Insurance, TNUSRB, Karnataka PSC, Kerala PSC, Intelligence Bureau, UPSC EPFO, UPSC CAPF, Kerala PSC LDC, TNTET, etc.

List of Important Days & Dates in December 2025

Veranda RACE’s erudite R&D team (Bank, SSC, TNPSC, Karnataka PSC, Railways & TNTET) with years of teaching experience and subject matter experts in various exams has prepared an exhaustive list of details about the important days and dates of national and important events in December 2025, the last month of the year, for the aspirants preparing for various exams in 2025 like IBPS PO, IBPS Clerk, IBPS SO, SBI PO, SSC CGL, SSC MTS, SSC JE, RRB NTPC, RRB Technician, SSC CHSL, TNPSC Group 1, TNPSC Group 4, TNPSC Group 2, TNPSC Group 2A, UPSC CSE, UPSC CAPF, CDS, NDA, TNUSRB SI/PC Police, Intelligence Bureau (IB) ACIO, IB Security Assistant, IB Junior Intelligence Officer, IB MTS, UPSC EPFO, NIACL AO, NICL AO, etc.

Check out the detailed list given below containing all the important days and dates in December 2025 here from the Best Bank, SSC, TNPSC, TNUSRB, TNTET, Railways and Karnataka PSC Coaching Institute in Tamil Nadu, Kerala, Karnataka & Puducherry in 2025:

List of Important Days and Dates in December 2025

Date

Event

1 December

World AIDS Day

1 December

BSF Rasing Day / Border Security Force Raising Day

2 December

National Pollution Control Day

2 December

International Day for the Abolition of Slavery

2 December

UAE National Day

2 December

World Computer Literacy Day

3 December

International Day of Persons with Disabilities / World Day of the Handicapped

4 December

Indian Navy Day

4 December

International Cheetah Day

4 December

International Day of Banks

4 December

International Day Against Unilateral Coercive Measures

4 December

World Wildlife Conservation Day

5 December

International Volunteer Day for Economic and Social Development

5 December

World Soil Day

6 December

Independence Day of Finland

6 December

Mahaparinirvan Diwas of Dr. B.R. Ambedkar

6 December

Civil Defence Day / Annual Day for Home Guards and Civil Defence

7 December

International Civil Aviation Day

7 December

Indian Armed Forces Flag Day

8 December

Indian Navy Submarine Day

9 December

International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime

9 December

International Anti-Corruption Day

10 December

Human Rights Day

10 December

Independence Day of Tanzania

10 December

Alfred Nobel Day

11 December

International Mountain Day

11 December

UNICEF Foundation Day

12 December

International Universal Health Coverage Day

12 December

International Day of Neutrality

14 December

Monkey Day / International Monkey Day

14 December

International Day Against Colonialism in all its Form and Manifestations

14 December

National Energy Conservation Day in India

16 December

Vijay Diwas / Victory Day in India

16 December

National Day of Bahrain

17 December

International Day to End Violence Against Sex Workers

17 December

National Day of Bhutan

17 December

Pensioners Day in India

18 December

International Migrants Day

18 December

Minorities Rights Day in India

18 December

Arabic Language Day

19 December

Goa Liberation Day

20 December

International Human Solidarity Day

20 December

SSB Raising Day / Sashastra Seema BalRaising Day

21 December

December Solstice / Winter Solstice

21 December

World Saree Day

21 December

World Meditation Day

21 December

World Basketball Day

22 December

National Mathematics Day in India

23 December

Kisan Diwas / Birth Anniversary of former Indian Prime Minister Chaudhary Charan Singh / National Farmers Day in India

25 December

Christmas

25 December

Good Governance Day in India / Birth Anniversary of former Indian PM Atal Bihari Vajpayee

26 December

Boxing Day

26 December

Veer Baal Diwas

27 December

International Day of Epidemic Preparedness

29 December

International Cello Day

31 December

New Year’s Eve

Details of Important Days and Dates in December 2025

Candidates preparing for various bank and government competitive exams in India can find the details of the important days and dates in December 2025:

World AIDS Day – 1 December 2025

World AIDS Day is globally observed on 1 December every year.

It was first established in 1998 by the World Health Organisation (WHO).

This day is designated to raise awareness of the AIDS pandemic caused by the spread of HIV infection.

The World AIDS Day Theme 2025 is ‘Overcoming disruption, transforming the AIDS response’.

An estimated 1.3 million people acquired HIV in 2024 and approximately 6,30,000 people died from HIV-related causes in 2024.

Maldives became the first country to achieve ‘triple elimination’ of mother-to-child transmission of HIV, syphilis and hepatitis B.

Important Days and Dates List in 2025: Veranda RACE

Aspirants preparing for Bank and government competitive exams in India can find the list of important days and dates in each month in 2025 here from Veranda RACE:

Veranda RACE’s Important Days and Dates in 2025

Important Dates and Days in June 2025: National and International Days List

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Important Dates and Days in July 2025: National and International Days List

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Important Dates and Days in August2025: National and International Days List

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Important Dates and Days in September2025: National and International Days List

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Important Dates and Days in October 2025: National and International Days List

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Important Dates and Days in November 2025: National and International Days List

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FAQs

December 2025 includes several high-priority national and international observances that are frequently tested in competitive exams such as UPSC, SSC, Intelligence Bureau, IBPS, TNPSC, Railways and Insurance exams. Some of the most important days are World AIDS Day (1 December), National Pollution Control Day (2 December), Indian Navy Day (4 December), Indian Armed Forces Flag Day (7 December), Human Rights Day (10 December), National Energy Conservation Day (14 December), Vijay Diwas (16 December), Goa Liberation Day (19 December), National Mathematics Day (22 December), Kisan Diwas (23 December) and Good Governance Day (25 December). These dates are significant because they cover themes such as public health, defence, governance, environment and social development, making them highly relevant for General Awareness and Current Affairs sections.
December is considered an important month for awareness days because it brings together global observances related to human rights, health, governance, peace, environment and social responsibility. Internationally significant days such as World AIDS Day, Human Rights Day, International Anti-Corruption Day and Universal Health Coverage Day highlight key global challenges addressed by governments and international organisations. December also marks the December Solstice, reflecting seasonal and environmental importance. For competitive-exam aspirants, December observances are crucial as they are closely aligned with UN initiatives, Sustainable Development Goals, ethics in governance and public policy, which are core focus areas in UPSC and State PSC syllabi.
India observes several nationally significant days in December 2025 that are important from historical, constitutional, defence and social perspectives. Major Indian observances include BSF Raising Day (1 December), National Pollution Control Day (2 December), Mahaparinirvan Diwas of Dr. B.R. Ambedkar (6 December), Indian Armed Forces Flag Day (7 December), National Energy Conservation Day (14 December), Vijay Diwas (16 December) commemorating India’s victory, Goa Liberation Day (19 December), National Mathematics Day (22 December), Kisan Diwas or National Farmers’ Day (23 December) and Good Governance Day (25 December) marking the birth anniversary of Atal Bihari Vajpayee. These days are especially relevant for Indian competitive exams.
Several international observances in December 2025 are recognised by the United Nations and focus on global cooperation, human rights, health and sustainable development. Key UN-recognised days include World AIDS Day (1 December), International Day of Persons with Disabilities (3 December), International Volunteer Day (5 December), International Civil Aviation Day (7 December), International Anti-Corruption Day (9 December), Human Rights Day (10 December), International Mountain Day (11 December), Universal Health Coverage Day (12 December), International Migrants Day (18 December) and International Human Solidarity Day (20 December). These observances are frequently referenced in UPSC and state PSC exams such as TNPSC, Kerala PSC, Karnataka PSC, etc., under international affairs and UN-related topics.
National Mathematics Day is observed in India on 22 December 2025 to commemorate the birth anniversary of Srinivasa Ramanujan, one of the greatest mathematicians in Indian history. This day highlights the importance of mathematics in education, scientific innovation and national development. It is significant for competitive exams especially Bank and Insurance exams because questions are often asked about Ramanujan’s contributions, the date of National Mathematics Day and India’s emphasis on scientific and mathematical excellence.

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