World Diabetes Day, the global awareness day for diabetes, is observed internationally on which calendar date each year?

Introduction / Context:
This question focuses on World Diabetes Day, one of the major global health-awareness days. Diabetes is a widespread non-communicable disease, and World Diabetes Day aims to increase awareness, promote early detection, and encourage better management and prevention. Competitive exams often ask about the exact date of this observance because it is officially recognised by both the World Health Organization and the International Diabetes Federation.

Given Data / Assumptions:

• The observance in question is World Diabetes Day.
• The options list four important health-related dates: 14 November, 4 February, 7 April, and 31 May.
• We must identify which date is designated specifically for World Diabetes Day.

Concept / Approach:
World Diabetes Day is observed annually on 14 November. The date was chosen to mark the birthday of Sir Frederick Banting, who co-discovered insulin. In contrast, 4 February is World Cancer Day, 7 April is World Health Day, and 31 May is World No Tobacco Day. Recognising which health condition is linked to which date is a key part of health-related GK.

Step-by-Step Solution:
Step 1: Identify the health observance mentioned: World Diabetes Day. Step 2: Recall that World Diabetes Day is celebrated every year on 14 November. Step 3: Compare this with the options: 14 November, 4 February, 7 April, and 31 May. Step 4: Confirm that 14 November is exactly the date associated with diabetes awareness globally. Step 5: Recognise that 4 February is World Cancer Day, 7 April is World Health Day, and 31 May is World No Tobacco Day. Step 6: Conclude that the correct answer must be 14 November.

Verification / Alternative check:
World Diabetes Day is listed as 14 November in WHO documents, on the International Diabetes Federation website, and in almost every reliable health-awareness calendar. The day is used for blue-circle campaigns, screening camps, and educational programmes, all referenced to 14 November. This confirms our choice beyond any doubt.

Why Other Options Are Wrong:
4 February: Observed as World Cancer Day to raise awareness about cancer prevention and treatment.
7 April: Celebrated as World Health Day, focusing on an overall health theme chosen each year by WHO.
31 May: Observed as World No Tobacco Day, dedicated to raising awareness about the dangers of tobacco use.

Common Pitfalls:
Many students mix up health days that fall on the 14th of a month, especially World Blood Donor Day on 14 June and World Diabetes Day on 14 November. Another common confusion is with World Health Day on 7 April. To remember correctly, pair each date with its theme: 14 June for blood donation, 14 November for diabetes, 7 April for general health, and 31 May for no tobacco.

Final Answer:
Thus, World Diabetes Day is observed every year on 14 November.