Last change: 1977
Aug
28
1 hour Back
Aug 28, 1977, 2:00 am
Daylight Saving Time (DST) Not Observed in Year 2025
Guam currently observes Chamorro Standard Time (ChST) all year.
DST is no longer in use.
Clocks do not change in Guam.
The previous DST change in Guam was on August 28, 1977.
Try selecting a different year below.
Daylight Saving Time History in Guam
- Guam has never observed Daylight Saving Time.
- See Worldwide DST Statistics