Coordinated Universal Time (UTC) is the primary time standard used worldwide to regulate clocks and timekeeping. It serves as the reference for civil time and time zones across the globe.
UTC is based on International Atomic Time (TAI), which is derived from highly precise atomic clocks maintained in laboratories worldwide. Unlike local time zones, UTC does not change with daylight saving time adjustments. Instead, it remains consistent, with occasional leap seconds added to account for variations in Earth's rotation.