Which Countries Observe British Summer Time (BST) and When?

Discover which countries switch to British Summer Time (BST) and the typical dates of this seasonal time change.

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The United Kingdom and countries such as Ireland and Portugal change to British Summer Time (BST) during the summer months. BST typically runs from the last Sunday in March to the last Sunday in October. This change helps make better use of daylight.

FAQs & Answers

  1. What is British Summer Time (BST)? British Summer Time (BST) is the practice of advancing clocks by one hour during the summer months to make better use of daylight.
  2. Which countries switch to BST? The United Kingdom, Ireland, and Portugal are among the countries that switch to British Summer Time during the summer months.
  3. When does BST start and end each year? BST typically begins on the last Sunday in March and ends on the last Sunday in October.
  4. Why do countries observe British Summer Time? Countries observe BST to make better use of daylight during the longer days of summer, which can help save energy and provide more daylight in the evenings.