Introduction

Important days and dates form one of the most heavily tested General Knowledge topics across SSC, UPSC, Banking, Railway and State PSC exams. Questions typically ask for the exact date, the theme for the current year, the organising body, or the historical event behind a particular observance. This guide compiles every nationally and internationally significant day, month by month, along with the year's theme where applicable — everything you need in one place for quick revision and long-term retention.

January — Important Days

  • 4 January — World Braille Day (marks the birth anniversary of Louis Braille)
  • 6 January — World War Orphans Day
  • 9 January — Pravasi Bharatiya Divas (Non-Resident Indian Day)
  • 10 January — World Hindi Day
  • 12 January — National Youth Day (birth anniversary of Swami Vivekananda)
  • 15 January — Indian Army Day
  • 24 January — National Girl Child Day
  • 25 January — National Voters' Day / National Tourism Day
  • 26 January — Republic Day of India
  • 28 January — Data Protection Day
  • 30 January — Martyrs' Day (Shaheed Diwas), marking Mahatma Gandhi's death anniversary

February — Important Days

  • 4 February — World Cancer Day
  • 6 February — International Day of Zero Tolerance for Female Genital Mutilation
  • 12 February — National Productivity Day
  • 13 February — World Radio Day
  • 20 February — World Day of Social Justice
  • 21 February — International Mother Language Day
  • 24 February — Central Excise Day
  • 28 February — National Science Day (commemorates the discovery of the Raman Effect by C.V. Raman)

March — Important Days

  • 3 March — World Wildlife Day
  • 4 March — National Security Day
  • 8 March — International Women's Day
  • 13 March — No Smoking Day (second Wednesday of March)
  • 15 March — World Consumer Rights Day
  • 18 March — Ordnance Factories Day (India)
  • 20 March — International Day of Happiness / World Sparrow Day
  • 21 March — World Forestry Day / International Day of Nowruz
  • 22 March — World Water Day
  • 23 March — World Meteorological Day
  • 24 March — World Tuberculosis (TB) Day
  • 27 March — World Theatre Day

April — Important Days

  • 2 April — World Autism Awareness Day
  • 5 April — National Maritime Day
  • 7 April — World Health Day
  • 10 April — World Homeopathy Day
  • 11 April — National Safe Motherhood Day
  • 14 April — Dr. B.R. Ambedkar Jayanti / National Fire Service Day (begins)
  • 18 April — World Heritage Day
  • 21 April — Civil Services Day (National)
  • 22 April — Earth Day
  • 23 April — World Book and Copyright Day
  • 24 April — National Panchayati Raj Day
  • 25 April — World Malaria Day

May — Important Days

  • 1 May — International Labour Day (Workers' Day)
  • 3 May — World Press Freedom Day
  • 4 May — International Firefighters' Day
  • 8 May — World Red Cross Day
  • 11 May — National Technology Day (India)
  • 12 May — International Nurses Day
  • 15 May — International Day of Families
  • 17 May — World Telecommunication and Information Society Day
  • 21 May — Anti-Terrorism Day (India)
  • 24 May — Commonwealth Day
  • 31 May — World No Tobacco Day

June — Important Days

  • 4 June — International Day of Innocent Children Victims of Aggression
  • 5 June — World Environment Day
  • 8 June — World Oceans Day
  • 12 June — World Day Against Child Labour
  • 14 June — World Blood Donor Day
  • 17 June — World Day to Combat Desertification and Drought
  • 20 June — World Refugee Day
  • 21 June — International Day of Yoga
  • 23 June — International Olympic Day / United Nations Public Service Day
  • 26 June — International Day Against Drug Abuse and Illicit Trafficking
  • 29 June — National Statistics Day (India)

July — Important Days

  • 1 July — National Doctors' Day (India, birth anniversary of Dr. B.C. Roy) / GST Day
  • 4 July — International Cooperative Day (first Saturday of July)
  • 6 July — World Zoonoses Day
  • 11 July — World Population Day
  • 15 July — World Youth Skills Day
  • 17 July — World Day for International Justice
  • 26 July — Kargil Vijay Diwas (India)
  • 28 July — World Nature Conservation Day
  • 29 July — International Tiger Day
  • 30 July — International Day of Friendship

August — Important Days

  • 1 August — World Lung Cancer Day
  • 6 August — Hiroshima Day
  • 7 August — National Handloom Day
  • 9 August — Quit India Movement Day / Nagasaki Day / International Day of the World's Indigenous Peoples
  • 12 August — International Youth Day
  • 15 August — Independence Day (India)
  • 19 August — World Humanitarian Day
  • 20 August — Akshay Urja Diwas (Sadbhavana Diwas)
  • 23 August — National Space Day (India)
  • 29 August — National Sports Day (India, birth anniversary of Major Dhyan Chand)

September — Important Days

  • 2 September — World Coconut Day
  • 5 September — National Teachers' Day (India, birth anniversary of Dr. Sarvepalli Radhakrishnan)
  • 7 September — International Day of Clean Air for Blue Skies
  • 8 September — International Literacy Day
  • 14 September — Hindi Diwas (National)
  • 15 September — Engineer's Day (India, birth anniversary of Sir M. Visvesvaraya) / International Day of Democracy
  • 16 September — World Ozone Day
  • 21 September — International Day of Peace
  • 27 September — World Tourism Day

October — Important Days

  • 1 October — International Day of Older Persons
  • 2 October — Gandhi Jayanti / International Day of Non-Violence
  • 5 October — World Teachers' Day / Indian Air Force Day
  • 8 October — Indian Air Force Day (alternative reference)
  • 9 October — World Post Day
  • 10 October — World Mental Health Day / Indian Air Force Day (official)
  • 11 October — International Day of the Girl Child
  • 13 October — International Day for Disaster Risk Reduction
  • 15 October — World Students' Day (birth anniversary of Dr. A.P.J. Abdul Kalam)
  • 16 October — World Food Day
  • 24 October — United Nations Day / World Development Information Day
  • 31 October — National Unity Day (Rashtriya Ekta Diwas, birth anniversary of Sardar Vallabhbhai Patel)

November — Important Days

  • 5 November — World Tsunami Awareness Day
  • 7 November — National Cancer Awareness Day
  • 9 November — Legal Services Day (India)
  • 10 November — World Science Day for Peace and Development
  • 12 November — National Public Broadcasting Day (India) / World Pneumonia Day
  • 14 November — Children's Day (India, birth anniversary of Jawaharlal Nehru) / World Diabetes Day
  • 17 November — National Epilepsy Day
  • 19 November — International Men's Day / World Toilet Day
  • 21 November — World Television Day
  • 26 November — Constitution Day (India, Samvidhan Divas)
  • 29 November — International Day of Solidarity with the Palestinian People

December — Important Days

  • 1 December — World AIDS Day
  • 2 December — National Pollution Control Day
  • 3 December — International Day of Persons with Disabilities
  • 4 December — Indian Navy Day
  • 5 December — World Soil Day
  • 6 December — Mahaparinirvan Diwas (death anniversary of Dr. B.R. Ambedkar)
  • 7 December — Indian Armed Forces Flag Day
  • 9 December — International Anti-Corruption Day
  • 10 December — Human Rights Day
  • 11 December — International Mountain Day
  • 16 December — Vijay Diwas (India, 1971 Indo-Pak War victory)
  • 18 December — Minorities Rights Day (India)
  • 22 December — National Mathematics Day (birth anniversary of Srinivasa Ramanujan)
  • 23 December — Kisan Diwas (Farmers' Day, India)
  • 24 December — National Consumer Rights Day

How Exams Test Important Days — Question Patterns to Watch

  • Exact date matching: "On which date is World Environment Day observed?" — direct recall questions form the bulk of this topic.
  • Theme-based questions: Recent exams increasingly ask for the current year's theme (e.g., World Health Day, Yoga Day) rather than just the date — always check the latest theme close to your exam date.
  • Founder/originator link: Days tied to birth or death anniversaries (Teachers' Day, Children's Day, National Mathematics Day) are frequently paired with a second question on the person's contribution.
  • Organising body: Questions on UN-designated days often ask which UN body designated it (WHO, UNESCO, UNEP) — worth memorising alongside the date.

Frequently Asked Questions

Q1. Which day is celebrated as National Science Day in India, and why?

National Science Day is observed every year on 28 February to commemorate the discovery of the Raman Effect by physicist Sir C.V. Raman on this date in 1928, a discovery that later won him the Nobel Prize in Physics. It is one of the most frequently asked important-days questions in SSC and Railway exams.

Q2. What is the significance of 15 August and 26 January, and how do exams differentiate between them?

15 August is Independence Day, marking India's freedom from British rule in 1947, while 26 January is Republic Day, marking the date the Constitution of India came into effect in 1950. Exam questions often test this distinction directly, since both are related but mark different constitutional milestones.

Q3. Why is 21 June observed as International Day of Yoga, and when did it start?

International Day of Yoga is observed on 21 June — the summer solstice, the longest day of the year in the Northern Hemisphere — following a proposal by PM Narendra Modi at the UN General Assembly in 2014, with the first observance held in 2015. It has since become one of the most recurring important-days questions across all major competitive exams.

Q4. Which important days are linked to the birth anniversaries of Indian leaders, and why are they exam-relevant?

Several major observances are linked to Indian leaders' birth anniversaries: National Youth Day (Swami Vivekananda, 12 January), Engineer's Day (Sir M. Visvesvaraya, 15 September), Children's Day (Jawaharlal Nehru, 14 November), and National Mathematics Day (Srinivasa Ramanujan, 22 December). Exams frequently pair the date with the person's key contribution, making this a two-in-one revision area.

Q5. How should aspirants revise this topic close to exam day?

Aspirants should revise this list month-wise rather than alphabetically, since exam questions are often framed around a specific month or season, and should cross-check the current year's theme for major days like World Health Day, Environment Day and Yoga Day in the weeks before their exam, since themes change annually while dates remain fixed.

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