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Why is there about a two hour local time difference between India's eastern and western ends?

Answer and explanation

Correct answer: India has a longitudinal extent of about twenty-nine degrees

The governing rule is that local solar time changes with longitude: each degree of longitude corresponds to approximately four minutes of time. India extends about 29° from west to east, so the theoretical difference is 29 × 4 = 116 minutes, or about 1 hour 56 minutes. This is conventionally described as roughly two hours. The east experiences sunrise and local noon earlier than the west, although the whole country follows Indian Standard Time based on 82°30′ E. Option B is correct because it identifies the longitudinal extent and supports the calculation. Latitude mainly influences climate, not this east–west time difference; the Equator and island status are irrelevant.

Related tags

LongitudeLocal TimeIndia ExtentStandard TimeMeridiansAnd Local TimeLongitude Meridians And Local TimeGeographical Coordinates And TimeGeography

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