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Guam Government House

Hagatna, Guam

7 Jan 2026

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Frequently Asked Questions

What time is it in Guam now?

Guam operates on Chamorro Standard Time (ChST), which is UTC+10:00. Guam does not observe Daylight Saving Time, so this offset remains constant throughout the year. To find what time it is in Guam now, you need to add 10 hours to Coordinated Universal Time (UTC).

Does it observe Daylight Saving Time (DST)?

No, Guam does not observe DST. The region remains on Chamorro Standard Time (UTC+10:00) throughout the year.

How does the local time compare to neighboring countries?

Guam shares its time zone with the Northern Mariana Islands. It is 1 hour ahead of Japan and 2 hours ahead of the Philippines.

What is the time difference with the United States?

Guam is 15 hours ahead of Eastern Time (ET) and 18 hours ahead of Pacific Time (PT). This means when it's noon in Guam, it's 9 PM the previous day in ET and 6 PM the previous day in PT.

What are some major industries?

The economy relies on key sectors, including:

Tourism: A major industry with beautiful beaches, diving sites, and cultural attractions drawing visitors from Asia and the Pacific.

Military: The U.S. military presence is significant, with Naval Base Guam and Andersen Air Force Base contributing to the local economy.

Construction: Infrastructure development and military-related construction projects are important economic drivers.

What is some local trivia or geography?

Guam is known for its unique geography and culture:

Chamorro Culture: The indigenous Chamorro people have a rich cultural heritage with unique language, traditions, and cuisine.

World War II History: The island played a significant role in World War II, with historic sites and memorials commemorating the conflict.

Diving and Marine Life: Guam offers excellent diving opportunities with coral reefs, shipwrecks, and diverse marine life.

Latte Stones: Ancient stone pillars called latte stones are iconic symbols of Chamorro culture and can be seen throughout the island.