Important Days in September 2025
All over the world, some days are kept for special causes and celebrations. A few of them happen on the same date every year, like the International Day of Peace on 21st September, which the UN has set to promote peace and non-violence. Some are based on a specific day, so the date changes each year. For example, World First Aid Day is observed on the second Saturday of September (In 2025, it will be observed on Saturday, 13th September). Apart from international days announced by groups like the UN and UNESCO, India also celebrates its own national days decided by Indian authorities.
September 2025 Calendar
Explore our September 2025 Calendar featuring a comprehensive list of important days! This guide is important for students preparing for government exams like UPSC, SSC, IBPS, and more. Our detailed list helps you stay updated on significant dates and events in September 2025.
List of Important Days in September 2025
Enhance your general knowledge and boost your exam preparation with our September 2025 Calendar below:
Special Days in September 2025
Below are the explanations of special days in the month of September 2025:
1st September: Week of National Nutrition
From September 1 through September 7, a week is devoted to honoring nutrition. The day is significant because it increases understanding of the importance of food and how nutrition affects a person’s body. Sharing information about the value of healthy eating promotes greater health.
2nd September: International Coconut Day
Every year on September 2, the world celebrates coconuts. This is a significant September holiday because it raises consumer awareness of the worth of coconut fruit. The Asian Pacific Coconut Community, or APCC, celebrates its anniversary on this day as well.
5th September: Teachers’ Day
The second President of India, Dr. Sarvapalli Radhakrishnan, was born on September 5, making today one of the most significant days in September for Indians. We honor and thank our teachers for helping to develop responsible citizens on this day.
5th September: Onam
A major annual event for Malayali people in and outside Kerala, celebrating the homecoming of the mythical King Mahabali.
8th September: Day of International Literacy
International Literacy Day is observed annually to increase public awareness of the value of literacy in terms of pride and human rights. This is one of the most significant days in September since it is essential to achieving the Sustainable Development Goals of the UN.
10th September: It’s World Suicide Prevention Day
World Suicide Prevention Day, observed annually on September 10 to raise awareness about preventing suicide cases that are on the rise globally, is one of the most significant days in September. This event also has the World Health Organization as a co-sponsor.
14th September: Hindi Diwas
One of the most important days in September is Hindi Diwas, which is observed on September 14 in India. On this day in 1949, the Indian Constitution community proclaimed Hindi to be the nation’s official language.
15th September: Engineers Day (India)
Engineer’s Day is observed on September 15 each year in India. This day, one of the significant ones in September honors Mokshagundam Vishweshvaraya, who received the Bharat Ratna Award, on his birthday. The holiday reminds us of the importance of engineers to the development of any nation.
16th September: World Ozone Day
The 16th of September is recognized as World Ozone Day, also known as International Day for Preventing the Ozone Layer. The day is important because it raises awareness of the danger the ozone layer faces.
18th September: International Bamboo Day
Every year on September 18, the world celebrates World Bamboo Day to raise awareness of the rapidly expanding plant, its advancement, and its conservation. The World Bamboo Organization emphasizes the importance of growing bamboo plants.
21st September: International Day of Peace
Another significant day in September is this one. International Day of Peace is observed annually on September 21. The UN Assembly declared this day a day of nonviolence and a cease-fire to maintain principles of peace.
21st September: World Alzheimer’s Day
World Alzheimer’s Day was established in 2012 and is observed annually on September 21st across the globe. This is one of the special days in September whose goal is to increase understanding and combat the widespread stigma associated with dementia caused by Alzheimer’s disease.
22nd September: World Rhino Day
The 22nd of September is designated as World Rhino Day to raise awareness of the five rhino species and prevent their extinction. One of September’s most significant days is today.
25th September: World Maritime Day
One of the most significant days in September is observed everywhere. The 24th of September is recognized as World Maritime Day. The purpose of this day is to increase public awareness of how important shipping is to the global transportation system and international trade.
25th September: World Pharmacists Day
The 25th of September is designated each year as World Pharmacists Day. The International Pharmaceutical Federation was established on this day. The theme for World Pharmacists Day in 2025 is “Think Health, Think Pharmacist”. The day’s purpose is to honor pharmacists’ contributions to society worldwide.
25th September: Antyodaya Diwas
Antyodaya Diwas, which is observed annually in India, is one of the notable dates in September 2025. Prime Minister Narendra Modi gave it national attention when Pandit Deendayal Upadhyaya’s birthday was commemorated on this day in 2014.
26th September: World Contraception Day
The 26th of September is designated as World Contraception Day each year. The day is meant to raise awareness of contraception. World Contraception Day, one of the significant days in September, educates youth about recommended sexual and reproductive health alternatives.
September 2025 Calendar
A comprehensive list of the various days, both national and international, has been provided to you. These form part of the general knowledge that you must have to clear the general knowledge section of an Examination successfully. While this list provides comprehensive information, you must still keep your eyes open when you read the newspaper every day for any new similar observance announcement that might be made. New announcements are often made, and you must keep track of them and add them to this list.
Important Days in September 2025 – Frequently Asked Questions
Ans. These dates are important to know as they will help you muster marks in the general knowledge questions.
Ans. World Coconut Day is observed on 2nd September.
Ans. Engineers Day is celebrated on September 15th in India.
Ans. The important days in September in India are Teacher’s Day (5th September), National Forest Martyrs Day (11th September), Hindi Diwas (14th September), Engineer’s Day (15th September), International Day of Democracy (15th September), and Antyodaya Diwas (25th September).
Ans. No. Some days have fixed dates (e.g., Hindi Diwas – 14th Sept), while others are observed on a specific day of the week, causing the date to change annually (e.g., World First Aid Day – second Saturday of September).
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