Important Days Of December 2025: The Must-Know International And National Dates Lined Up This Month

Add as a preferred source on Google

December 2025 is full of events that mix awareness, culture, celebration, and reflection. With the year winding down, the month brings a long lineup of national and international observances, many of which shape conversations around health, human rights, the environment, history, and everyday life. Here is what the month brings so you can keep track, stay aware, and maybe even plan around it.

International Days And Global Observances In December

December is packed with UN-designated days that highlight health, rights, the environment, and global solidarity.

• December 1 - World AIDS Day
• December 2 - International Day for the Abolition of Slavery; World Computer Literacy Day; National Pollution Control Day
• December 3 - International Day of Persons with Disabilities
• December 4 - International Day of Banks; also Indian Navy Day
• December 5 - International Volunteer Day; World Soil Day
• December 6 - Mahaparinirvan Diwas; National Microwave Oven Day
• December 7 - International Civil Aviation Day; Armed Forces Flag Day
• December 8 - Bodhi Day
• December 9 - International Anti-Corruption Day; Day of Remembrance for Victims of Genocide
• December 10 - Human Rights Day
• December 11 - International Mountain Day; UNICEF Day
• December 12 - International Day of Neutrality; International Universal Health Coverage Day
• December 13 - National Horse Day
• December 14 - National Energy Conservation Day
• December 16 - Vijay Diwas
• December 18 - Minorities Rights Day; International Migrants Day; Arabic Language Day
• December 19 - Goa Liberation Day
• December 20 - International Human Solidarity Day
• December 21 - World Saree Day; World Basketball Day; World Meditation Day; Winter Solstice
• December 22 - National Mathematics Day
• December 23 - Kisan Diwas
• December 24 - National Consumer Rights Day, Christmas Eve
• December 25 - Christmas Day; Good Governance Day
• December 26 - Veer Bal Diwas; Boxing Day
• December 27 - International Day of Epidemic Preparedness
• December 31 - New Year's Eve

Photo Credit: Freepik

National Observances And Celebrations In India

India's December calendar is dotted with events that highlight defence, governance, agriculture, science, and social awareness.

• Indian Navy Day (Dec 4): Marks the 1971 Indo-Pak War victory led by INS Vikrant.
• Vijay Diwas (Dec 16): Commemorates India's victory in the 1971 war and Bangladesh's independence.
• Minorities Rights Day (Dec 18): Brings attention to minority protection laws and inclusion.
• Goa Liberation Day (Dec 19): Marks the end of Portuguese rule in 1961.
• National Mathematics Day (Dec 22): Celebrates Srinivasa Ramanujan's birth anniversary and promotes STEM activities.
• Kisan Diwas (Dec 23): Honours Chaudhary Charan Singh and India's farming community.
• National Consumer Rights Day (Dec 24): Marks the enactment of the Consumer Protection Act, 1986.
• Veer Bal Diwas (Dec 26): Pays tribute to Sahibzadas Zorawar Singh and Fateh Singh.

December 2025 is a month that layers global awareness days with Indian national observances, festive traditions, and historical milestones. Whether you're tracking social issues, planning festivities, or simply curious about what each day represents, December offers a full calendar that keeps you informed and connected.