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UPSC CSE 2025 · PYQ · World Geography / International Date Line · medium

Consider the following statements: I. Anadyr in Siberia and Nome in Alaska are a few kilometers from each other, but when people are waking up and getting set for breakfast in these cities, it would be different days. II. When it is Monday in Anadyr, it is Tuesday in Nome. Which of the statements given above is/are correct?

  1. A.I only✓ Correct
  2. B.II only
  3. C.Both I and II
  4. D.Neither I nor II

Explanation

Anadyr (Russia) and Nome (Alaska, USA) lie on opposite sides of the International Date Line in the Bering Strait region. Despite being geographically close, they fall on different sides of the IDL, so when people wake up for breakfast, they experience different calendar days (Statement I correct). However, when crossing the IDL from west to east (Anadyr to Nome), one moves back a day. So when it is Monday in Anadyr (west of IDL), it is Sunday — not Tuesday — in Nome (east of IDL). Thus Statement II is incorrect.
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