Important days in December 2025: National and international dates to note for holidays, observances – check details

December, the final month of the year, brings a mix of cultural, national, and global observances. In India, the month is marked by public holidays, regional festivals, and national commemorations. Meanwhile globally, the month highlights awareness campaigns on health, human rights, and environmental issues.Key national days in India include Vijay Diwas (Dec 16), celebrating India’s military achievements, and Kisan Diwas (Dec 23), honoring farmers’ contributions. Christmas on Dec 25 is a nationwide public holiday, and New Year’s Eve on Dec 31 is observed in several states, including Manipur and Mizoram. Regional and tribal celebrations such as Indigenous Faith Day and Tamu Losar reflect India’s diverse cultural traditions.Globally, December features important awareness days such as World AIDS Day (Dec 1), International Human Rights Day (Dec 10), International Mountain Day (Dec 11), and National Energy Conservation Day (Dec 14), focusing on health, equality, sustainability, and social inclusion. With weekends and Christmas as the main breaks, December is marks the end of the year and hopes, aspirations for the new one.From Christmas festivities to tribal commemorations and the birth or death anniversaries of revered personalities, the month offers a diverse calendar of public holidays. These observances reflect India’s rich cultural and regional diversity, allowing communities to celebrate their unique traditions while coming together in shared national celebrations. Here is a look at all the public holidays in India during December 2025, along with the states where they will be observed, as per Economic Times.