Daylight Savings Time Changes in Guam 🇬🇺 (1977)
| Country: | Guam |
| Capital: | Hagatna |
| Abbreviations: | GU, GUM |
| IANA Time Zones: | 1 |
| Dial Code: | ++1-671 |
Daylight Savings Time Schedule and Information
Before
01
:
59
After
03
:
00
24 APR
24 Apr 1977 - Daylight Saving Time Starts
When local standard time is about to reach Sunday, 24 April 1977, 01:59 clocks are turned forward 1 hour to
Sunday, 24 April 1977, 03:00 local daylight time instead.
Sunrise and sunset will be about 1 hour later on 24 Apr 1977 than the day before. There will be more light in the evening.
Also called Spring Forward.
Before
01
:
59
After
01
:
00
28 AUG
28 Aug 1977 - Daylight Saving Time Ends
When local standard time is about to reach Sunday, 28 August 1977, 01:59 clocks are turned backward 1 hour to
Sunday, 28 August 1977, 01:00 local standard time instead.
Sunrise and sunset will be about 1 hour earlier on 28 Aug 1977 than the day before. There will be more light in the morning.
Also called Fall Back.
Daylight Savings Time Schedules by Regions in Guam (1977)
| Region | DST Start (Spring) | DST End (Fall) |
|---|---|---|
| Agana Heights | 24 Apr 1977 | 28 Aug 1977 |
| Agat | 24 Apr 1977 | 28 Aug 1977 |
| Asan | 24 Apr 1977 | 28 Aug 1977 |
| Barrigada | 24 Apr 1977 | 28 Aug 1977 |
| Chalan Pago-Ordot | 24 Apr 1977 | 28 Aug 1977 |
| Dededo | 24 Apr 1977 | 28 Aug 1977 |
| Hagatna | 24 Apr 1977 | 28 Aug 1977 |
| Inarajan | 24 Apr 1977 | 28 Aug 1977 |
| Mangilao | 24 Apr 1977 | 28 Aug 1977 |
| Merizo Municipality | 24 Apr 1977 | 28 Aug 1977 |
| Mongmong-Toto-Maite Municipality | 24 Apr 1977 | 28 Aug 1977 |
| Piti Municipality | 24 Apr 1977 | 28 Aug 1977 |
| Santa Rita Municipality | 24 Apr 1977 | 28 Aug 1977 |
| Sinajana Municipality | 24 Apr 1977 | 28 Aug 1977 |
| Talofofo Municipality | 24 Apr 1977 | 28 Aug 1977 |
| Tamuning | 24 Apr 1977 | 28 Aug 1977 |
| Umatac | 24 Apr 1977 | 28 Aug 1977 |
| Yigo | 24 Apr 1977 | 28 Aug 1977 |
| Yona | 24 Apr 1977 | 28 Aug 1977 |
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 1977?
Yes, Guam observes Daylight Saving Time during the 1977 calendar year. The country follows the practice of shifting clocks to better align waking hours with the available evening sunlight during the spring and summer months.
When do the clocks change next in Guam?
The next scheduled time transition in Guam will take place on Sunday, 24 April 1977. At 01:59 local time, clocks will be turned forward by 1 hour. This specific change marks the transition to daylight saving time starts.
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.
How will the next transition affect the day in Guam?
Following the shift on 24 Apr 1977, you will notice that there is more light in the evening compared to the day before. While the transition may temporarily disrupt sleep patterns, the primary goal of this forward shift is to maximize usable daylight for the population.