London to Guam Time Difference
🇬🇧 London is currently 10 hours ahead of 🇬🇺 Guam. This difference varies between 9h and 10h due to Daylight Saving Time.
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Atin 🇬🇧 London→it will be—in 🇬🇺 Guam
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Difference
+10h
Business overlap
None
Distance
12,039 km
Approx. flight
14.2h
Hour-by-Hour: London to Guam
| 🇬🇧 London | 🇬🇺 Guam | 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)
London observes Daylight Saving Time, while Guam does not. This causes the time difference to shift between 9 hours ahead and 10 hours ahead depending on the season. Currently, London is 10 hours ahead relative to Guam.
Min difference
9h
Max difference
10h
Best Meeting Times
There is no overlap between standard business hours (9 AM – 6 PM) in London and Guam. Consider scheduling early morning or late evening calls to bridge the gap.
Frequently Asked Questions
What is the time difference between London and Guam?
The time difference between London and Guam is currently 10 hours ahead. London uses GMT (UTC+0), while Guam uses GMT+10 (UTC+10). This difference varies seasonally due to Daylight Saving Time, ranging from 9 hours ahead to 10 hours ahead.
When it's noon in London, what time is it in Guam?
When it's 12:00 PM (noon) in London, it is 10:00 PM in Guam. Use our calculator above to convert any other time.
Does the time difference between London and Guam change?
Yes, the time difference changes throughout the year. Because London observes Daylight Saving Time, the offset shifts between 9 hours ahead and 10 hours ahead at different times of the year.
What are the best times to schedule a call between London and Guam?
There is no overlap between standard business hours (9 AM – 6 PM) in London and Guam. Consider scheduling early morning in one city or late evening in the other to find a mutually reasonable time.
Is London ahead or behind Guam?
London is currently 10 hours behind Guam.
What time zone is London in?
London is in the Europe/London time zone, currently using GMT (UTC+0). London observes Daylight Saving Time, so the offset changes twice a year.
What time is midnight in London in Guam?
When it is midnight (12:00 AM) in London, it is 10:00 AM in Guam.