On October 1, 2025, several significant observances and celebrations occur globally:

• International Day of Older Persons, aiming to raise awareness about the challenges faced by elderly people.
• International Coffee Day, celebrating the global love and appreciation for coffee.
• World Vegetarian Day, promoting vegetarianism and its benefits.
• China's National Day, marking the founding of the People's Republic of China in 1949, celebrated with a week-long Golden Week festival.
• National Homemade Cookie Day, Balloons Around the World Day, Ayudha Puja, and other cultural observances.
• Armed Forces Day in South Korea.
• Independence Day celebrations in Nigeria, Cyprus, Palau, and Tuvalu.
• Other national and international observances include National Raccoon Day, National Kale Day, and World Postcard Day.

Additionally, October is Breast Cancer Awareness Month and National Cyber Security Awareness Month. Historically, October 1 is noted for Mao Zedong proclaiming the establishment of the People's Republic of China in 1949, a major historical event. These highlight the mix of cultural, historical, and social significance tied to October 1 across the world.