Guam to San Juan Time Difference
🇬🇺 Guam is currently 14 hours behind of 🇵🇷 San Juan.
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Atin 🇬🇺 Guam→it will be—in 🇵🇷 San Juan
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Difference
-14h
Business overlap
None
Distance
15,110 km
Approx. flight
17.8h
Hour-by-Hour: Guam to San Juan
| 🇬🇺 Guam | 🇵🇷 San Juan | Note |
|---|---|---|
| 12:00 AM | 10:00 AM | |
| 1:00 AM | 11:00 AM | |
| 2:00 AM | 12:00 PM | |
| 3:00 AM | 1:00 PM | |
| 4:00 AM | 2:00 PM | |
| 5:00 AM | 3:00 PM | |
| 6:00 AM | 4:00 PM | |
| 7:00 AM | 5:00 PM | |
| 8:00 AM | 6:00 PM | |
| 9:00 AM | 7:00 PM | |
| 10:00 AM | 8:00 PM | |
| 11:00 AM | 9:00 PM | |
| 12:00 PM | 10:00 PM | |
| 1:00 PM | 11:00 PM | |
| 2:00 PM | 12:00 AM(next day) | Next day |
| 3:00 PM | 1:00 AM(next day) | Next day |
| 4:00 PM | 2:00 AM(next day) | Next day |
| 5:00 PM | 3:00 AM(next day) | Next day |
| 6:00 PM | 4:00 AM(next day) | Next day |
| 7:00 PM | 5:00 AM(next day) | Next day |
| 8:00 PM | 6:00 AM(next day) | Next day |
| 9:00 PM | 7:00 AM(next day) | Next day |
| 10:00 PM | 8:00 AM(next day) | Next day |
| 11:00 PM | 9:00 AM(next day) | Next day |
Daylight Saving Time (DST)
Neither Guam nor San Juan observes Daylight Saving Time. The time difference is always 14 hours behind.
Best Meeting Times
There is no overlap between standard business hours (9 AM – 6 PM) in Guam and San Juan. Consider scheduling early morning or late evening calls to bridge the gap.
Frequently Asked Questions
What is the time difference between Guam and San Juan?
The time difference between Guam and San Juan is currently 14 hours behind. Guam uses GMT+10 (UTC+10), while San Juan uses AST (UTC-4).
When it's noon in Guam, what time is it in San Juan?
When it's 12:00 PM (noon) in Guam, it is 10:00 PM in San Juan. Use our calculator above to convert any other time.
Does the time difference between Guam and San Juan change?
No. The time difference between Guam and San Juan is always 14 hours behind — neither city observes Daylight Saving Time, so the offset never changes.
What are the best times to schedule a call between Guam and San Juan?
There is no overlap between standard business hours (9 AM – 6 PM) in Guam and San Juan. Consider scheduling early morning in one city or late evening in the other to find a mutually reasonable time.
Is Guam ahead or behind San Juan?
Guam is currently 14 hours ahead of San Juan.
What time zone is Guam in?
Guam is in the Pacific/Guam time zone, currently using GMT+10 (UTC+10). Guam does not observe Daylight Saving Time.
What time is midnight in Guam in San Juan?
When it is midnight (12:00 AM) in Guam, it is 10:00 AM in San Juan.