Coordinated Universal Time
Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time. It is a modern continuation of Greenwich Mean Time (GMT) and is maintained by the Bureau International des Poids et Mesures (BIPM) and the International Earth Rotation and Reference Systems Service (IERS). UTC is based on International Atomic Time (TAI) with leap seconds added at irregular intervals to compensate for Earth's slowing rotation, ensuring it stays within 0.9 seconds of Universal Time (UT1).
Developers should learn about UTC to handle time-related operations accurately in global applications, such as scheduling events, logging timestamps, or synchronizing data across time zones. It is essential for avoiding timezone-related bugs, ensuring consistency in distributed systems, and complying with international standards in fields like finance, aviation, and telecommunications.