Dededo keeps UTC+10 (ChST) all year. There is no daylight saving time, so the clock never changes.
Dededo and your time
Dededo at a glance
| Country | Guam |
|---|---|
| Region | Dededo |
| Time zone | Pacific/Guam |
| Abbreviation now | ChST |
| UTC offset now | UTC+10 |
| Daylight saving time | Not observed since 1977 |
| Coordinates | 13.52° N, 144.84° E |
Dededo time zone and clock changes
Dededo follows the Pacific/Guam time zone and stays on UTC+10 all year. Clocks here last changed for daylight saving time in 1977; the tz database lists no change after that.
Dededo is on the same time as the rest of Guam, including the capital, Hagåtña.
Clock changes in Dededo, 2026 and 2027
No clock changes are scheduled in Dededo for 2026 or 2027.
How far ahead or behind Dededo is
A 9:00 AM start in Dededo is 6:00 PM (previous day) in New York, 10:00 AM in Sydney and 3:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 15 h behind | 15 h behind | 14 h behind | None |
| Los Angeles (United States) | --:-- | 18 h behind | 18 h behind | 17 h behind | None |
| London (United Kingdom) | --:-- | 10 h behind | 10 h behind | 9 h behind | None |
| Paris (France) | --:-- | 9 h behind | 9 h behind | 8 h behind | None |
| Dubai (United Arab Emirates) | --:-- | 6 h behind | 6 h behind | 6 h behind | 2 h |
| Mumbai (India) | --:-- | 4 h 30 min behind | 4 h 30 min behind | 4 h 30 min behind | 3 h 30 min |
| Singapore | --:-- | 2 h behind | 2 h behind | 2 h behind | 6 h |
| Tokyo (Japan) | --:-- | 1 h behind | 1 h behind | 1 h behind | 7 h |
| Sydney (Australia) | --:-- | 1 h ahead | 1 h ahead | Same time | 7 h |
| UTC | --:-- | 10 h behind | 10 h behind | 10 h behind | None |
Because Dededo keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Sunrise, sunset and day length in Dededo
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length barely moves in Dededo, from 11 hours 20 minutes to 12 hours 56 minutes. Sunrise and sunset shift by less than an hour across the year.
Daylight through the year in Dededo
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 21 | 6:24 AM | 6:32 PM | 12 h 7 min |
| June solstice | June 21 | 5:55 AM | 6:50 PM | 12 h 56 min |
| September equinox | September 23 | 6:10 AM | 6:16 PM | 12 h 7 min |
| December solstice | December 22 | 6:39 AM | 5:59 PM | 11 h 20 min |
When the sun is highest in Dededo
Clock time and sun time line up fairly well in Dededo: solar noon falls at about 12:20 PM on standard time.
Cities near Dededo
Every city below shares Dededo’s clock.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Hagåtña | 11 km (7 mi) | --:-- | Same time |
| Saipan (Northern Mariana Islands) | 213 km (132 mi) | --:-- | Same time |
More cities in Guam
All time zones and cities in Guam
Tools for time in Dededo
- Convert a time to or from Dededo: pick a date and time and see it in every city on your list.
- Add Dededo to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Dededo and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Dededo in?
Dededo uses the Pacific/Guam time zone, which is UTC+10 (ChST) all year.
Does Dededo use daylight saving time?
Not any more. Dededo last changed its clocks for daylight saving time in 1977 and now stays on UTC+10 all year.
What is the time difference between Dededo and New York?
Dededo is 15 hours ahead of New York in January and 14 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Dededo does not.
Is Dededo on the same time as Hagåtña?
Yes. Dededo and Hagåtña both use UTC+10 right now.
How long is the longest day in Dededo?
About 12 hours 56 minutes, around the June solstice. The shortest day, around the December solstice, has about 11 hours 20 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.