Daylight Savings Time Changes in Guam 🇬🇺 (1973)
| 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
16 DEC
16 Dec 1973 - Daylight Saving Time Starts
When local standard time is about to reach Sunday, 16 December 1973, 01:59 clocks are turned forward 1 hour to
Sunday, 16 December 1973, 03:00 local daylight time instead.
Sunrise and sunset will be about 1 hour later on 16 Dec 1973 than the day before. There will be more light in the evening.
Also called Spring Forward.
Daylight Savings Time Schedules by Regions in Guam (1973)
| Region | DST Start (Spring) | DST End (Fall) |
|---|---|---|
| Agana Heights | 16 Dec 1973 | - |
| Agat | 16 Dec 1973 | - |
| Asan | 16 Dec 1973 | - |
| Barrigada | 16 Dec 1973 | - |
| Chalan Pago-Ordot | 16 Dec 1973 | - |
| Dededo | 16 Dec 1973 | - |
| Hagatna | 16 Dec 1973 | - |
| Inarajan | 16 Dec 1973 | - |
| Mangilao | 16 Dec 1973 | - |
| Merizo Municipality | 16 Dec 1973 | - |
| Mongmong-Toto-Maite Municipality | 16 Dec 1973 | - |
| Piti Municipality | 16 Dec 1973 | - |
| Santa Rita Municipality | 16 Dec 1973 | - |
| Sinajana Municipality | 16 Dec 1973 | - |
| Talofofo Municipality | 16 Dec 1973 | - |
| Tamuning | 16 Dec 1973 | - |
| Umatac | 16 Dec 1973 | - |
| Yigo | 16 Dec 1973 | - |
| Yona | 16 Dec 1973 | - |
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 1973?
Yes, Guam observes Daylight Saving Time during the 1973 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, 16 December 1973. 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 16 Dec 1973, 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.