IANA time zone · Chamorro Standard Time
Pacific/Guam
Clock changes in 2026 and 2027
Clocks in this zone don’t change – it stays on UTC+10 all year.
Cities in the Pacific/Guam zone
- Dededo Village Guam
- Hagåtña Guam
The identifier Pacific/Guam comes from the IANA time zone database (tz database) used by operating systems, browsers and programming languages. A zone in this database is an area where clocks have agreed since 1970 – which is why one country can have several zones with the same offset.