UTC
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It is a high-precision atomic time standard that approximates mean solar time at the prime meridian (0° longitude) and serves as the basis for civil time worldwide. Unlike time zones, UTC does not observe daylight saving time and provides a consistent reference for global coordination.
Developers should learn and use UTC to handle time-related data consistently across distributed systems, avoid timezone-related bugs, and ensure interoperability in international applications. It is essential for scheduling events, logging timestamps, financial transactions, and any scenario where precise, unambiguous time representation is required, such as in databases, APIs, and cloud services.