Last change: 1977
Aug
28
1 hour Back
28 Aug 1977, 02:00
| Unincorp. Org. Territory: | Guam |
|---|---|
| Long Name: | Territory of Guam |
| Country: | USA |
| Abbreviations: | GU, GUM |
| Time Zones: | 1 |
| Dial Code: | +1 |
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 28 August 1977.
Try selecting a different year below.
Daylight Saving Time History in Guam
- Guam last observed Daylight Saving Time in 1977.
- Guam has observed DST for 12 years between 1959 and 1977.
- See Worldwide DST Statistics