About

It is based on International Atomic Time (TAI) with leap seconds added at irregular intervals to compensate for the Earth's slowing rotation. UTC is used in various fields, such as aviation, telecommunications, and scientific research, as a global time reference. UTC is derived from TAI, which is calculated by over 400 atomic clocks located across different continents. These clocks are highly accurate and their measurements are averaged to create a stable and reliable time scale. Leap seconds are introduced into UTC to align it with the Earth's rotation, as the planet's spin is gradually slowing down. The implementation of UTC is overseen by the International Telecommunication Union (ITU) and the International Bureau of Weights and Measures (BIPM). They coordinate with various national timekeeping organizations to ensure the correct time dissemination worldwide. Many countries and institutions synchronize their local clocks with UTC, either by directly receiving time signals or via network time protocols. UTC is widely used in everyday life, particularly in timekeeping devices and computer systems. It allows for standardized communication and coordination across different time zones. However, it should not be confused with Greenwich Mean Time (GMT), as GMT refers to a specific time zone based on the observatory in Greenwich, London. UTC, on the other hand, is the global standard for timekeeping. The Wikipedia page on UTC provides a detailed overview of its history, development, and implementation. It also delves into related topics like leap seconds, time zones, and the role of organizations like the ITU and BIPM. The page serves as a comprehensive resource for anyone seeking information about UTC and its significance in global timekeeping.