Guam Time Zone
Chamorro Standard Time (ChST)
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UTC +10:00 | Chamorro Standard Time
What Time Is It In Guam?
Understanding Guam's Time Zone
Chamorro Standard Time
Guam operates on Chamorro Standard Time (ChST), which is UTC+10. This time zone is named after the indigenous Chamorro people of Guam and is used year-round without daylight saving time changes.
Pacific Time Zone
Located in the western Pacific Ocean, Guam is among the first places on Earth to see each new day. When it's noon in Guam, it's 7 PM the previous day on the US West Coast.
No Daylight Saving
Guam maintains the same time throughout the year. There's no daylight saving time, making it consistent and reliable for business and travel planning across seasons.
Guam's Strategic Location
Crossroads of the Pacific
Coordinates:
13.4443° N, 144.7937° E
Area:
549 square kilometers (212 sq mi)
Population:
Approximately 170,000 residents
Capital:
Hagåtña (formerly Agana)
Guam is the largest island in Micronesia and serves as a crucial hub in the Pacific. Its unique position makes it an important strategic location for both military and commercial purposes. The island experiences a tropical marine climate with warm temperatures year-round, making it a popular destination for tourists and a vital location for Pacific operations.
Business Hours in Guam
When to Connect with Guam
Government Offices
Monday - Friday: 8:00 AM - 5:00 PM ChST
Saturday - Sunday: Closed
Banking Hours
Monday - Thursday: 9:00 AM - 3:00 PM ChST
Friday: 9:00 AM - 6:00 PM ChST
Saturday: 9:00 AM - 1:00 PM ChST
Retail Stores
Monday - Saturday: 10:00 AM - 9:00 PM ChST
Sunday: 11:00 AM - 6:00 PM ChST
Restaurants
Breakfast: 6:00 AM - 11:00 AM ChST
Lunch: 11:00 AM - 3:00 PM ChST
Dinner: 5:00 PM - 10:00 PM ChST
Chamorro Culture & Heritage
Rich Pacific Island Traditions
Ancient Latte Stones
The iconic latte stones are archaeological remnants of ancient Chamorro architecture, representing the rich pre-colonial history of Guam. These limestone pillars supported traditional houses and are symbols of Chamorro ingenuity and culture.
Chamorro Language
Chamorro is an Austronesian language spoken by the indigenous people of Guam and the Northern Mariana Islands. "Hafa Adai" (Hello/How are you?) is the traditional greeting that embodies the warm, welcoming spirit of the Chamorro people.
Traditional Festivities
Guam celebrates Liberation Day on July 21st, commemorating the island's liberation from Japanese occupation in 1944. The island also hosts numerous village fiestas throughout the year, featuring traditional foods, dances, and community gatherings.
Travel to Guam
Planning Your Pacific Paradise Visit
Getting There
A.B. Won Pat International Airport (GUM) serves as Guam's main gateway. Direct flights are available from major Asian cities like Tokyo, Seoul, Manila, and Taipei, as well as from Honolulu and select US mainland cities.
Best Time to Visit
Guam enjoys tropical weather year-round with temperatures averaging 84°F (29°C). The dry season from December to June offers the most pleasant conditions, while the rainy season brings occasional typhoons from July to November.
Accommodations
Tumon Bay is the main tourist area with luxury resorts and hotels. For a more local experience, consider staying in Hagåtña or exploring the southern villages for authentic Chamorro hospitality and culture.
Must-See Attractions
Visit Two Lovers Point for stunning cliff views, explore the underwater world at Gun Beach, discover history at Fort Nuestra Señora de la Soledad, and experience local culture at the Chamorro Village Night Market.
Fascinating Guam Facts
Discover What Makes Guam Special
01
America's First Sunrise
Guam is where America's day begins! As a US territory in the western Pacific, Guam experiences sunrise about 15 hours before the mainland United States.
02
Brown Tree Snake Invasion
Guam faces an ecological challenge with millions of invasive brown tree snakes that have eliminated most of the island's native bird species since their accidental introduction after WWII.
03
Mariana Trench Neighbor
Guam sits near the deepest part of Earth's oceans - the Mariana Trench. The Challenger Deep, located about 200 miles southwest of Guam, reaches depths of over 36,000 feet.
04
Spam Capital of the World
Guam has one of the highest per-capita consumption rates of Spam in the world! This canned meat became popular during WWII and remains a staple in local cuisine today.