UTC, or Coordinated Universal Time, is the time standard used worldwide. It serves as the basis for timekeeping across different regions and is not affected by daylight saving time. This means that no matter where you are on the globe, you can refer to UTC to know the exact time without confusion. UTC is often expressed in hours and minutes, such as UTC+0 or UTC-5, indicating how many hours ahead or behind it is from the UTC baseline. Many countries and organizations use UTC to synchronize their clocks, ensuring that everyone is on the same page, regardless of their local time zone.