UTC stands for Coordinated Universal Time, which is the primary time standard by which the world regulates clocks and time. It does not change with the seasons, making it a consistent reference point for timekeeping across the globe. UTC is divided into various time zones, each defined by its offset from UTC. For example, UTC+1 is one hour ahead of UTC, while UTC-5 is five hours behind. These time zones help synchronize activities across different regions, ensuring that people can coordinate events and schedules effectively.