| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00 | −9h | Becomes −10h on 25 Oct |
| Berlin Germany | 02:00 | −8h | Becomes −9h on 25 Oct |
| Dubai UAE | 04:00 | −6h | |
| Tokyo Japan | 09:00 | −1h | |
| Sydney Australia | 10:00 | ±0h | Becomes +1h on 4 Oct |
| New York United States | 20:00Wed | −14h | Becomes −15h on 1 Nov |
| Los Angeles United States | 17:00Wed | −17h | Becomes −18h on 1 Nov |
Hagåtña, Guam runs on UTC+10. This time zone stays fixed year-round at UTC+10 — daylight saving time is not observed. The time difference between Hagåtña and New York is 14 hours. Standard working hours don't overlap at all with New York, so meetings need an early or late slot on one side. The time difference between Hagåtña and London is 9 hours. Standard working hours don't overlap at all with London, so meetings need an early or late slot on one side. The time difference between Hagåtña and Tokyo is 1 hour. Standard 9-to-6 working hours overlap for about 8 hours a day with Tokyo. A good time to connect: 10:00–18:00 in Hagåtña lines up with 09:00–17:00 in Tokyo. This timezone is also shared with cities such as Brisbane, Gold Coast, Cairns. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Hagåtña.
Hagåtña (Guam) is home to roughly 140K people. Today brings about 12.0 hours of daylight: sunrise at 06:10, sunset at 18:11. This time zone stays fixed year-round at UTC+10 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 13° north of the equator. Traffic drives on the right.
Capital
Hagåtña 👑
Continent
Oceania
Time Zone
UTC+10 · Pacific/Guam
Coordinates
13.48°N, 144.75°E
Currency
USD ($)
Calling Code
+1
Driving Side
Right
Hemisphere
Northern
Language
English, Chamorro
Measurement System
Metric
Did You Know?
Guam markets itself as where America's day begins, sitting at UTC+10 on the far side of the date line from the mainland — about 15 hours ahead of New York. It is a US territory whose residents are citizens but cannot vote for president.
The clock: Hagåtña observes no daylight saving, so the gap to the US mainland shifts by an hour twice a year without Guam doing anything.
Hagåtña lies at 144.8°E. Its time zone, UTC+10, is built around the 150°E meridian. The 5.3° gap between them means the clock runs roughly 21 minutes ahead of the sun: solar noon arrives at about 12:21 rather than 12:00. The zone holds UTC+10 all year — there is no daylight saving here.
The longest day of 2026 is 22 June, with 12h 55m of daylight. The shortest is 22 December, with 11h 20m. The swing between them is 1h 35m. Inside the tropics the day length stays within a narrow band all year.
The earliest sunrise and the latest sunset do not land on the longest day. In Hagåtña the sun comes up earliest on 2 June at 05:53, while the latest sunset waits until 11 July at 18:52. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In Hagåtña that civil twilight runs about 21 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for Hagåtña, Guam is Pacific/Guam with a current UTC offset of UTC+10.
Hagåtña has an estimated population of 140K and is located at coordinates 13.48°N, 144.75°E. It is the capital city of Guam.
Hagåtña gets 12h 55m of daylight on its longest day and 11h 20m on its shortest, averaging 12h 8m a day across the year.
Solar noon in Hagåtña falls at about 12:21 on UTC+10 standard time, because the city sits 5.3° from the meridian its zone is built on.
Where America's Day Begins: Guam markets itself as where America's day begins, sitting at UTC+10 on the far side of the date line from the mainland — about 15 hours ahead of New York.