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UTC

Coordinated Universal Time

12 Dec 2025

Frequently Asked Questions

What is the difference between UTC and other time zones?

UTC serves as the reference time zone from which all other zones are defined. It does not change with the seasons, unlike zones that may observe DST.

Does UTC observe DST?

No, the zone does not observe DST. It remains constant throughout the year.

Which major locations follow this offset?

Many locations use this zone as their standard time during certain periods, including countries like the United Kingdom (outside DST) and Iceland, and regions like Western Africa.

What areas share this offset?

Several regions share the offset, including parts of Europe, Africa, and some Pacific islands.

How does this compare with nearby time zones?

UTC is the baseline for all zones. For example, GMT is effectively the same, but UTC is more precise as it is based on atomic time. Zones like UTC+1 (CET) or UTC-1 differ by one hour.

Why doesn't UTC observe DST?

UTC does not observe DST because it is a fixed time standard used as a reference for global timekeeping, ensuring consistency across the world.

How was this offset established?

The zone was established in 1960 by the International Telecommunication Union to standardize timekeeping across the world. It combines the time from atomic clocks with the Earth's rotation.

What are the typical work hours here?

Since the zone is not tied to a specific region, work hours depend on the time zone of the location using UTC. Typical office hours are generally 9:00 AM to 5:00 PM, but this can vary by country.

What is the economic importance of this area?

The zone is crucial for global communication, transportation, and financial markets. It is the foundation for timekeeping worldwide, ensuring synchronization of activities across different time zones.