Important Days

Key Concepts & Formulas

# Concept Quick Explanation
1 UN Observances Most UN days fall on fixed dates (e.g. 24 Oct UN Day) or the same weekday (e.g. 2nd Wednesday of Oct = International Day for Disaster Reduction)
2 India-centric Days Republic Day 26 Jan, Independence Day 15 Aug, Gandhi Jayanti 2 Oct are the only 3 national holidays; all other “days” are observances, not holidays
3 Health-theme Pattern WHO days often use the 7th of a month (7 Apr – World Health Day), or the last/full-moon day (31 May – World No-Tobacco)
4 Birth/Death Anniversaries Many Indian days are birthdays: Ambedkar 14 Apr, Nehru 14 Nov (Children’s Day), Bose 23 Jan
5 Easy recall: “21” = “Anti” 21 Jun – International Yoga Day, 21 Mar – International Day for Elimination of Racial Discrimination, 21 Sep – International Day of Peace (UN Anti-conflict)
6 Twin-digit trick 08-08 (8 Aug) – Quit India, 09-09 (9 Sep) – Himalaya Diwas, 10-10 (10 Oct) – World Mental Health Day

10 Practice MCQs

1. International Day of Yoga is celebrated on the same day as which Indian solar event? - A. Summer Solstice - B. Winter Solstice - C. Spring Equinox - D. Autumn Equinox **Answer:** A **Solution:** 21 June is the summer solstice in the Northern Hemisphere; yoga day was purposely aligned with the longest day. **Shortcut tip:** “Yoga-21-Summer-1” (21st = longest day). **Concept tag:** UN Observance + Science link
2. ‘National Maritime Day’ in India marks the maiden voyage of which ship in 1919? - A. SS Loyalty - B. SS Himalaya - C. INS Delhi - D. MV Ganga **Answer:** A **Solution:** SS Loyalty sailed from Mumbai to London on 5 April 1919; hence 5 Apr is observed every year. **Shortcut tip:** “Loyal-5” (Loyalty → 5 Apr). **Concept tag:** India-centric Day
3. Which day is observed on the death anniversary of Dr. B. R. Ambedkar? - A. Constitution Day - B. Ambedkar Jayanti - C. Mahaparinirvan Diwas - D. Social Justice Day **Answer:** C **Solution:** 6 Dec 1956 is observed as Mahaparinirvan Diwas; 14 Apr is birth anniversary (Jayanti). **Shortcut tip:** “6-Dec = Demise (D-D)”. **Concept tag:** Birth/Death Anniversaries
4. World Tribal Day or International Day of the World’s Indigenous Peoples is on: - A. 2 August - B. 9 August - C. 15 August - D. 29 August **Answer:** B **Solution:** UN fixed date 9 Aug since 1994. **Shortcut tip:** “9-Aug = Adivasi (both start with A)”. **Concept tag:** UN Observance
5. ‘National Science Day’ commemorates the discovery of: - A. Raman Effect - B. Bose-Einstein Condensate - C. Chandrasekhar Limit - D. God Particle **Answer:** A **Solution:** CV Raman announced the effect on 28 Feb 1928; India observes 28 Feb as Science Day. **Shortcut tip:** “Raman-28 (R-2-8)”. **Concept tag:** Science + Birth/Death
6. Which of these pairs is wrongly matched? - A. 24 October – UN Day - B. 1 May – Labour Day - C. 27 September – World Tourism Day - D. 16 November – International Ozone Day **Answer:** D **Solution:** Ozone Day is 16 Sep; 16 Nov is International Day for Tolerance. **Shortcut tip:** “Ozone-16-9 (Oz=16 letters, 9 = Sep)”. **Concept tag:** UN Observance
7. ‘Himalaya Diwas’ is celebrated by Uttarakhand on: - A. 9 Sep - B. 2 Oct - C. 15 May - D. 21 Jun **Answer:** A **Solution:** 9 Sep 2016 was declared annual Himalaya Day by UK govt. **Shortcut tip:** “9-9 looks like twin peaks”. **Concept tag:** State-specific Day
8. India’s ‘National Voters’ Day’ marks the founding day of: - A. Election Commission of India - B. UPSC - C. CAG - D. Planning Commission **Answer:** A **Solution:** ECI came into being on 25 Jan 1950; 25 Jan is observed since 2011 to enrol new voters. **Shortcut tip:** “Vote-25 (V-2-5)”. **Concept tag:** Institution anniversary
9. Which day is observed on the 2nd Saturday of June every year? - A. World Blood Donor Day - B. World Ocean Day - C. World Environment Day - D. International Day of UN Peacekeepers **Answer:** A **Solution:** WBDD is 14 June or 2nd Saturday, whichever is later (WHO rule). **Shortcut tip:** “Blood-2nd-Sat (donate on weekend)”. **Concept tag:** WHO movable date
10. ‘Quit India Day’ shares its date with which modern observance? - A. Nagasaki Day - B. Hiroshima Day - C. Lokmanya Tilak Jayanti - D. Partition Horrors Remembrance Day **Answer:** A **Solution:** 8 Aug 1942 – Quit India; 9 Aug – Nagasaki (Japan time). Both remembered back-to-back. **Shortcut tip:** “8-Quit, 9-Nuke (8-9 sequence)”. **Concept tag:** Historical linkage

5 Previous Year Questions

1. When is ‘International Day of Rural Women’ celebrated? [RRB NTPC 28-03-2021 Shift-I] - A. 15 Oct - B. 5 Sep - C. 8 Mar - D. 1 May **Answer:** A **Solution:** UN declared 15 Oct in 2007. **Shortcut tip:** “Rural-15-10 (R-1-5)”.
2. Which date is celebrated as ‘National Milk Day’ in India? [RRB NTPC 30-01-2021] - A. 26 Nov - B. 15 Aug - C. 1 Oct - D. 26 Jan **Answer:** A **Solution:** 26 Nov 1920 – Verghese Kurien’s birth; since 2014 observed as Milk Day. **Shortcut tip:** “Milk-26-11 (M-2-6)”.
3. World Environment Day is celebrated on the same date as which Kargil event? [RRB Group-D 2018] - A. Kargil Vijay Diwas - B. Operation Vijay start - C. India’s first nuclear test - D. None **Answer:** B **Solution:** 5 Jun 1999 – Operation Vijay launched; WED also 5 Jun every year. **Shortcut tip:** “5-Jun = Green & Vijay start”.
4. ‘National Integration Day’ is observed on: [RRB ALP 2018] - A. 31 Oct - B. 19 Nov - C. 14 Nov - D. 9 Dec **Answer:** B **Solution:** Indira Gandhi’s birth 19 Nov; since 2013 celebrated as National Integration Day. **Shortcut tip:** “Indira-19-11 (I-1-9)”.
5. Which of the following days is not observed in the month of October? [RRB NTPC 2020] - A. World Post Day - B. World Standards Day - C. World Habitat Day - D. World Refugee Day **Answer:** D **Solution:** Refugee Day is 20 June; rest are movable Oct days. **Shortcut tip:** “Refugee-20-6 (R-2-0-6)”.

Speed Tricks & Shortcuts

Situation Shortcut Example
UN day ends with “-Day” & fixed date Look for 24, 5, 21, 16 24 Oct UN Day, 5 Jun WED, 21 Sep Peace, 16 Sep Ozone
India’s national festival trio 26-15-2 (Jan-Aug-Oct) 26 Jan, 15 Aug, 2 Oct
Birthday → Jayanti, Death → Parinirvan/Diwas Replace word Ambedkar Jayanti 14 Apr, Parinirvan 6 Dec
Health days with “7” 7th of month 7 Apr World Health, 7 Nov National Cancer Detection
Mirror dates (same digits) 08-08, 09-09, 10-10 Quit India 8 Aug, Himalaya 9 Sep, Mental Health 10 Oct

Common Mistakes to Avoid

Mistake Why Students Make It Correct Approach
Confusing Jayanti with Diwas Assume both are holidays Jayanti = birth (celebratory), Diwas = observance; only Jayanti of Gandhi & Ambedkar are public holidays
Switching 16 Sep & 16 Nov Similar numbers Ozone-16-Sep (O-S same shape), Tolerance-16-Nov
Thinking 31 May is “No-Tobacco” Full-moon rule forgotten WHO fixes “World No-Tobacco Day” as 31 May every year (no full-moon link)
Believing 2nd Saturday is always Blood Donor Day Shift-II exams ask movable date Read “2nd Saturday of June” not fixed 14 Jun

Quick Revision Flashcards

Front Back
21 June International Yoga Day (Summer Solstice)
28 Feb National Science Day (Raman Effect)
5 Apr National Maritime Day (SS Loyalty)
24 Oct UN Day (Charter enforced 1945)
25 Jan National Voters’ Day (ECI founding)
15 Oct Rural Women Day (after International Day of Girl-11 Oct)
26 Nov National Milk Day & Constitution Day (separate themes)
9 Aug Indigenous Peoples Day & Quit India Anniversary
8 Aug Quit India Launch
16 Sep Ozone Day (Montreal Protocol 1987)