Where Does the Day Start in the World? Understanding the International Date Line

Discover where each new day begins at the International Date Line and learn about its significance.

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The day starts at the International Date Line, which is located along the 180° longitude in the Pacific Ocean. As the Earth rotates eastward, this line marks where each new calendar day begins. Islands like Kiribati are among the first places to experience a new day.

FAQs & Answers

  1. What is the International Date Line? The International Date Line is an imaginary line located at approximately 180° longitude where each new calendar day begins.
  2. Why does the day start at the International Date Line? As the Earth rotates, the International Date Line marks the place where the calendar day shifts; places to the east of the line experience a new day first.
  3. Which places are the first to see the new day? Islands like Kiribati are among the first locations to experience a new day due to their proximity to the International Date Line.
  4. Does the International Date Line affect travel? Yes, the International Date Line can impact travel itineraries and schedules, especially when crossing from one calendar day to another.