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.

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:

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: