On October 1, 2025, several important international observances take place:

• International Day of the Older Persons, focused on raising awareness about elder persons and promoting a society for all ages.
• International Coffee Day, celebrating farmers, roasters, baristas, and all who contribute to coffee culture worldwide.
• World Vegetarian Day, founded in 1977 to promote vegetarianism globally.
• Mahanavami, the ninth day of Navratri, celebrating Goddess Durga (in 2025 it falls on October 1).

Additionally, October 1 is the National Day of the People's Republic of China, a significant public holiday in China celebrated annually on this date.

For October 20, 2025, notable observances include:

• Suspenders Day
• World Osteoporosis Day
• International Chefs Day
• National Day on Writing
• Office Chocolate Day.

These events highlight cultural, health, culinary, and writing-related themes on October 20. If more detail on a specific event or location is needed, please specify.