Umatac, Guam
Umatac uses Chamorro Standard Time, UTC+10. The village follows the same clock as the rest of Guam and does not make seasonal daylight-saving changes.
Umatac Village, Guam
Friday, 4 September 2026
UTC+10 · Pacific/Guam
Time and sun data for Umatac Village — the largest city of Umatac
The sun in Umatac Village
Sunrise 06:11 Solar noon 12:22 Sunset 18:32 Daylight 12 h 21 min Night 11 h 39 min Civil twilight 05:50 – 18:54
Guam · 3 cities
Largest cities
- Umatac Village 903
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Current time in Umatac, Guam
To find the current time in Umatac, use a clock configured for Pacific/Guam. That identifier keeps the calculation tied to Guam’s rules instead of relying on a manually entered offset that could be mislabeled or confused with another place.
The island has a single civil time, so the hour in Umatac matches the hour in Hagåtña, Tamuning, Yigo, and every other Guam community. Driving north or south does not cross a time-zone boundary. The practical complication usually comes from communicating with people beyond Guam.
Guam’s position near the International Date Line means that its local date can differ from the date in distant countries. A meeting described only as “Friday morning” is incomplete when participants are overseas. Include the date, Guam time, and the other participant’s zone in any important arrangement.
A village may be quiet, but its clock is still perfectly capable of waking someone overseas on the wrong day.
Umatac in the Guam time zone
Umatac, also written Humåtak in Chamorro usage, is a southern Guam village. Its location gives it a distinct landscape and local identity, but not a separate time standard. Administrative boundaries within Guam do not alter the island-wide clock.
For comparisons within the territory, a useful selection of places is: Hagåtña, the territorial capital Dededo, in northern Guam Tamuning, a central commercial and visitor hub Yigo, at the northern end of the island
Merizo, another southern community Population size does not affect timekeeping. Larger northern centers and smaller southern villages all use UTC+10. This makes local travel simple: schedules can be written without zone abbreviations when everyone involved is already on Guam.
For international invitations, however, writing “ChST” or “Guam time” is helpful. An even clearer format adds Pacific/Guam, because software can identify the location directly.
Reading sunrise for Umatac
A sunrise calculation for Umatac should be based on Umatac’s coordinates and the chosen local date. Sunrise changes gradually through the year, so a value copied from another month should not be treated as today’s answer. The island-wide time zone is shared, but precise solar events can vary slightly by position.
Umatac’s surrounding terrain and the direction of the visible horizon can affect personal observation. A calculated sunrise describes an astronomical event for a standard horizon; it cannot account for every ridge, building, cloud bank, or viewing point.
Select the intended date in Guam local time. Read dawn separately if the plan depends on usable early light. Allow for terrain and weather before scheduling photography, hiking, or travel. Recheck the next day rather than assuming the displayed minute never changes.
If an activity depends on darkness, also consult sunset and twilight. “Daylight” can mean direct sunshine, the interval between sunrise and sunset, or the broader twilight period, and those are not interchangeable.
Questions and answers
- Does Umatac have its own time zone?
- No. Umatac uses the common Guam time zone, Chamorro Standard Time.
- What is Umatac’s UTC offset?
- The offset is UTC+10 throughout the year.
- Why can the date in Umatac differ from the date abroad?
- Time-zone separation and Guam’s position near the International Date Line can place Umatac on a different calendar day.