Which Day Comes First: Sunday or Monday? Explained by Region and ISO Standard

Discover whether Sunday or Monday comes first in the week based on cultural context and the ISO 8601 international standard.

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The day that comes first--Sunday or Monday--depends on the cultural or regional context. In many parts of the world, including the USA, the week starts on Sunday. However, in several European countries and according to the international ISO 8601 standard, Monday is considered the first day of the week.

FAQs & Answers

  1. Why do some countries start the week on Sunday? Many countries, including the USA, traditionally consider Sunday as the first day of the week based on cultural and religious customs.
  2. What is the ISO 8601 standard for the first day of the week? ISO 8601 is an international standard that defines Monday as the first day of the week for consistency in date-related data exchange.
  3. Which regions typically start the week on Monday? Most European countries and many parts of the world aligned with ISO 8601 begin the week on Monday.

Watch More

For more insights into global calendar practices and timekeeping standards, explore our related videos on cultural time differences and international date formats.

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