The center of Guam is 20 hours ahead of Hawaii (HI).

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Current time

Hawaii (HI)   10:49 AM on Saturday, Feb 28, 2015

Guam   6:49 AM on Sunday, Mar 1, 2015

Countries often span multiple time zones. We are using the Pacific/Guam time zone. For more accuracy, choose a specific city within Guam.

Map from Hawaii to Guam

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More trip calculations

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Meeting planner for Hawaii (HI) and Guam

To schedule a conference call or plan a meeting at the best time for both parties, you should try between 1:00 PM and 5:00 PM your time in Hawaii. That will end up being between 9:00 AM and 1:00 PM in Guam. The chart on the right shows overlapping times.

Schedule a phone call from Hawaii to Guam

If you live in Hawaii and you want to call a friend in Guam, you can try calling them between 11:00 AM and 3:00 AM your time. This will be between 7AM - 11PM their time, since Guam is 20 hours ahead of Hawaii (HI).

If you're available any time, but you want to reach someone in Guam at work, you may want to try between 1:00 PM and 9:00 PM your time. This is the best time to reach them from 9AM - 5PM during normal working hours.

UTC-10 hours     UTC+10 hours
Hawaii     Guam
1:00 PM     9:00 AM
1:30 PM     9:30 AM
2:00 PM     10:00 AM
2:30 PM     10:30 AM
3:00 PM     11:00 AM
3:30 PM     11:30 AM
4:00 PM     12:00 PM
4:30 PM     12:30 PM
5:00 PM     1:00 PM

Hawaii (HI)

State: Hawaii
Country: United States
Category: states
Time zone: Pacific/Honolulu (UTC/GMT -10 hours)


Country: Guam
Continent: Oceania
Category: countries
Time zone: Pacific/Guam (UTC/GMT +10 hours)

Time difference

Travelmath provides an online time zone converter for places all over the world. You can enter airports, cities, states, countries, or zip codes to find the time difference between any two locations. The calculator will automatically adjust for daylight saving time (DST) in the summer. You can use it as a meeting planner or a scheduler to find the best time to make international phone calls. World time zones have a positive or negative offset computed from Coordinated Universal Time (UTC), or Greenwich Mean Time (GMT). UTC has uniform seconds defined by International Atomic Time (TAI), with leap seconds announced at irregular intervals to compensate for the Earth's slowing rotation. The tz database or zoneinfo database uses the closest city, rather than the more common Eastern, Central, Mountain or Pacific time zones in the United States. Countries often change their daylight saving rules, so please help us stay current by letting us know if you find any pages that need updates.