Daylight Savings Time Changes in Guam 🇬🇺 (2018)
Guam does not observe daylight saving time; clocks stay on ChST (UTC+10) all year round.
| Country: | Guam |
| Capital: | Hagatna |
| Abbreviations: | GU, GUM |
| IANA Time Zones: | 1 |
| Dial Code: | ++1-671 |
Regions in Guam that do not observe Daylight Savings Time
DST Changes Summary for Guam
| Date | Year | Change | Time | Details |
|---|---|---|---|---|
| 28 Aug | 1977 | Back 1 hour | 01:59 ➜ 01:00 | Daylight Saving End |
Read More About Daylight Savings Time
Common Questions about Daylight Savings Time Changes in Guam
Does Guam use Daylight Saving Time in 2018?
No, Guam does not observe Daylight Saving Time in 2018. The entire nation remains on its standard time offset year-round, meaning there are no seasonal clock adjustments for residents or visitors to worry about.
Does all of Guam follow the same time change schedule?
Yes, Guam follows a single, unified schedule. Every region across the country transitions to and from Daylight Saving Time at the exact same moment, ensuring a consistent time standard nationwide.
Frequently Asked Questions about DST in Guam
Does Guam observe Daylight Saving Time?
No, Guam does not observe Daylight Saving Time. Clocks stay on the same time year-round. Several countries near the equator and in low-latitude regions skip DST because daylight hours change little across seasons.
What time zone is Guam on after DST ends?
After DST ends, Guam returns to its standard time zone, Pacific / Guam (Pacific/Guam). Standard time is the country's year-round baseline; DST adds one hour to that during the warmer months.
Why doesn't Guam use Daylight Saving Time?
Countries near the equator gain almost no benefit from DST because day length barely changes across the year. Other countries have abandoned DST due to public opposition, energy studies showing little benefit, or to simplify scheduling. Guam falls into one of these categories.