Why GMT Transitioned to UTC: Understanding the Shift in Timekeeping
Discover why GMT changed to UTC for enhanced accuracy in timekeeping. Learn how atomic clocks revolutionized time standards.
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GMT changed to UTC to provide a more precise and scientific standard. Unlike GMT, which is based on Earth's rotation, UTC (Coordinated Universal Time) is managed by atomic clocks, ensuring greater accuracy despite minor differences in timekeeping methods.
FAQs & Answers
- What is the difference between GMT and UTC? The primary difference is that GMT is based on Earth's rotation, while UTC is based on atomic time, providing greater precision.
- Why is UTC preferred over GMT? UTC is preferred due to its accuracy and consistency derived from atomic clocks, ensuring synchronization across the globe.
- How does UTC affect global time zones? UTC serves as a reference for defining all global time zones, facilitating international coordination.
- What advancements led to the creation of UTC? The development of atomic clocks in the mid-20th century led to the establishment of UTC as a more precise timekeeping standard.