December marks the final chapter of the year and brings a mix of festivals, observances, and awareness days observed across the world. The month holds cultural, social, and historical importance, with events that highlight key global issues as well as days that hold significance in India.
From World AIDS Day at the start of the month to New Year’s Eve on the last day, December 2025 includes several national and international dates that remind us of social responsibilities, cultural heritage, and important milestones. Many families in India also consider this month favourable for weddings, making it a busy and meaningful time.
List of Important Days in December 2025
| Date | Event |
|---|---|
| Monday, December 1 | World AIDS Day |
| Tuesday, December 2 | National Pollution Control Day; International Day for the Abolition of Slavery |
| Wednesday, December 3 | International Day of Persons with Disabilities |
| Thursday, December 4 | International Day of Banks; International Day Against Unilateral Coercive Measures |
| Friday, December 5 | World Soil Day; International Volunteer Day |
| Saturday, December 6 | Mahaparinirvan Diwas; National Microwave Oven Day |
| Sunday, December 7 | Armed Forces Flag Day; International Civil Aviation Day |
| Monday, December 8 | Bodhi Day |
| Tuesday, December 9 | International Anti-Corruption Day; International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime |
| Wednesday, December 10 | Human Rights Day |
| Thursday, December 11 | International Mountain Day; UNICEF Day |
| Friday, December 12 | International Day of Neutrality; International Universal Health Coverage Day |
| Saturday, December 13 | National Horse Day |
| Sunday, December 14 | National Energy Conservation Day |
| Tuesday, December 16 | Vijay Diwas |
| Thursday, December 18 | Minorities Rights Day (India); International Migrants Day; Arabic Language Day |
| Friday, December 19 | Goa Liberation Day |
| Saturday, December 20 | International Human Solidarity Day |
| Sunday, December 21 | World Saree Day; Winter Solstice; World Basketball Day; World Meditation Day |
| Monday, December 22 | National Mathematics Day |
| Tuesday, December 23 | Kisan Diwas |
| Wednesday, December 24 | National Consumer Rights Day |
| Thursday, December 25 | Christmas; Good Governance Day |
| Friday, December 26 | Veer Bal Diwas; Boxing Day |
| Saturday, December 27 | International Day of Epidemic Preparedness |
| Wednesday, December 31 | New Year's Eve |
Below is a detailed look at the important days and events in December 2025
1 December – World AIDS Day
Observed globally to raise awareness about HIV/AIDS and support those living with the condition.
2 December – National Pollution Control Day; International Day for the Abolition of Slavery
National Pollution Control Day is observed in India to spread awareness about air, water, and noise pollution. The International Day for the Abolition of Slavery focuses on eliminating modern forms of exploitation.
3 December – International Day of Persons with Disabilities
A United Nations-designated day to promote inclusion and rights of persons with disabilities.
4 December – International Day of Banks; International Day Against Unilateral Coercive Measures
The day acknowledges the role of banks in improving living standards and supports discussions on economic cooperation.
5 December – World Soil Day; International Volunteer Day
World Soil Day highlights the need for soil preservation, while International Volunteer Day recognises the contribution of volunteers in community development.
6 December – Mahaparinirvan Diwas; National Microwave Oven Day
Mahaparinirvan Diwas marks the death anniversary of Dr B. R. Ambedkar. National Microwave Oven Day is observed mainly in the United States.
7 December – Armed Forces Flag Day; International Civil Aviation Day
India observes Armed Forces Flag Day to honour soldiers. The aviation day focuses on the role of aviation in global connectivity.
8 December – Bodhi Day
Celebrated in Buddhism to mark the enlightenment of Gautama Buddha.
9 December – International Anti-Corruption Day; International Day of Commemoration for Genocide Victims
These days highlight the fight against corruption and honour victims of past genocides.
10 December – Human Rights Day
Marks the adoption of the Universal Declaration of Human Rights.
11 December – International Mountain Day; UNICEF Day
International Mountain Day spreads awareness about mountain ecosystems. UNICEF Day marks the formation of the UN agency for children.
12 December – International Day of Neutrality; International Universal Health Coverage Day
Focused on promoting neutrality in international relations and supporting accessible healthcare.
13 December – National Horse Day
Observed in some countries to recognise the role of horses in history.
14 December – National Energy Conservation Day
An Indian observance promoting efficient energy use.
16 December – Vijay Diwas
Marks India’s victory in the 1971 war.
18 December – Minorities Rights Day; International Migrants Day; Arabic Language Day
The day focuses on minority rights in India, global migration issues, and cultural significance of the Arabic language.
19 December – Goa Liberation Day
Marks the liberation of Goa from Portuguese rule.
20 December – International Human Solidarity Day
A day to encourage unity and cooperation among communities.
21 December – World Saree Day; Winter Solstice; World Basketball Day; World Meditation Day
A unique date with multiple events, including cultural celebrations, the shortest day of the year, and sports- and health-related observances.
22 December – National Mathematics Day
Celebrated in honour of mathematician Srinivasa Ramanujan.
23 December – Kisan Diwas
Also known as National Farmers Day, it honours the contribution of farmers.
24 December – National Consumer Rights Day
Observed in India to promote awareness of consumer rights.
25 December – Christmas; Good Governance Day
Christmas is celebrated worldwide. India also observes Good Governance Day on the same date.
26 December – Veer Bal Diwas; Boxing Day
Veer Bal Diwas commemorates the martyrdom of the younger sons of Guru Gobind Singh. Boxing Day is observed in several countries.
27 December – International Day of Epidemic Preparedness
A day dedicated to strengthening global readiness against epidemics.
31 December – New Year’s Eve
The final day of the year, marked with celebrations across the world.
Discover the latest Business News, Sensex, and Nifty updates. Obtain Personal Finance insights, tax queries, and expert opinions on Moneycontrol or download the Moneycontrol App to stay updated!
