Guam to Colombo Time Difference
🇬🇺 Guam is currently 4.5 hours behind of 🇱🇰 Colombo.
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Atin 🇬🇺 Guam→it will be—in 🇱🇰 Colombo
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Difference
-4.5h
Business overlap
5h
Distance
7,125 km
Approx. flight
8.4h
Hour-by-Hour: Guam to Colombo
| 🇬🇺 Guam | 🇱🇰 Colombo | Note |
|---|---|---|
| 12:00 AM | 7:30 PM(prev day) | Previous day |
| 1:00 AM | 8:30 PM(prev day) | Previous day |
| 2:00 AM | 9:30 PM(prev day) | Previous day |
| 3:00 AM | 10:30 PM(prev day) | Previous day |
| 4:00 AM | 11:30 PM(prev day) | Previous day |
| 5:00 AM | 12:30 AM | |
| 6:00 AM | 1:30 AM | |
| 7:00 AM | 2:30 AM | |
| 8:00 AM | 3:30 AM | |
| 9:00 AM | 4:30 AM | |
| 10:00 AM | 5:30 AM | |
| 11:00 AM | 6:30 AM | |
| 12:00 PM | 7:30 AM | |
| 1:00 PM | 8:30 AM | |
| 2:00 PM | 9:30 AM | |
| 3:00 PM | 10:30 AM | |
| 4:00 PM | 11:30 AM | |
| 5:00 PM | 12:30 PM | |
| 6:00 PM | 1:30 PM | |
| 7:00 PM | 2:30 PM | |
| 8:00 PM | 3:30 PM | |
| 9:00 PM | 4:30 PM | |
| 10:00 PM | 5:30 PM | |
| 11:00 PM | 6:30 PM |
Daylight Saving Time (DST)
Neither Guam nor Colombo observes Daylight Saving Time. The time difference is always 4.5 hours behind.
Best Meeting Times
There are 5 overlapping business hours between Guam and Colombo (9 AM – 6 PM in each city).
🇬🇺 Guam
1:00 PM – 6:00 PM
🇱🇰 Colombo
8:30 AM – 1:30 PM
Frequently Asked Questions
What is the time difference between Guam and Colombo?
The time difference between Guam and Colombo is currently 4.5 hours behind. Guam uses GMT+10 (UTC+10), while Colombo uses GMT+5:30 (UTC+5:30).
When it's noon in Guam, what time is it in Colombo?
When it's 12:00 PM (noon) in Guam, it is 7:30 AM in Colombo. Use our calculator above to convert any other time.
Does the time difference between Guam and Colombo change?
No. The time difference between Guam and Colombo is always 4.5 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 Colombo?
The best time to call is between 1:00 PM and 6:00 PM in Guam (which is 8:30 AM – 1:30 PM in Colombo). This 5-hour window falls within business hours in both cities.
Is Guam ahead or behind Colombo?
Guam is currently 4.5 hours ahead of Colombo.
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 Colombo?
When it is midnight (12:00 AM) in Guam, it is 7:30 PM in Colombo.