Colombo to Guam Time Difference
🇱🇰 Colombo is currently 4.5 hours ahead of 🇬🇺 Guam.
Live Calculator
Atin 🇱🇰 Colombo→it will be—in 🇬🇺 Guam
Open full calculator →DST-accurate · shareable link
Difference
+4.5h
Business overlap
4h
Distance
7,125 km
Approx. flight
8.4h
Hour-by-Hour: Colombo to Guam
| 🇱🇰 Colombo | 🇬🇺 Guam | Note |
|---|---|---|
| 12:00 AM | 4:30 AM | |
| 1:00 AM | 5:30 AM | |
| 2:00 AM | 6:30 AM | |
| 3:00 AM | 7:30 AM | |
| 4:00 AM | 8:30 AM | |
| 5:00 AM | 9:30 AM | |
| 6:00 AM | 10:30 AM | |
| 7:00 AM | 11:30 AM | |
| 8:00 AM | 12:30 PM | |
| 9:00 AM | 1:30 PM | |
| 10:00 AM | 2:30 PM | |
| 11:00 AM | 3:30 PM | |
| 12:00 PM | 4:30 PM | |
| 1:00 PM | 5:30 PM | |
| 2:00 PM | 6:30 PM | |
| 3:00 PM | 7:30 PM | |
| 4:00 PM | 8:30 PM | |
| 5:00 PM | 9:30 PM | |
| 6:00 PM | 10:30 PM | |
| 7:00 PM | 11:30 PM | |
| 8:00 PM | 12:30 AM(next day) | Next day |
| 9:00 PM | 1:30 AM(next day) | Next day |
| 10:00 PM | 2:30 AM(next day) | Next day |
| 11:00 PM | 3:30 AM(next day) | Next day |
Daylight Saving Time (DST)
Neither Colombo nor Guam observes Daylight Saving Time. The time difference is always 4.5 hours ahead.
Best Meeting Times
There are 4 overlapping business hours between Colombo and Guam (9 AM – 6 PM in each city).
🇱🇰 Colombo
9:00 AM – 1:00 PM
🇬🇺 Guam
1:30 PM – 5:30 PM
Frequently Asked Questions
What is the time difference between Colombo and Guam?
The time difference between Colombo and Guam is currently 4.5 hours ahead. Colombo uses GMT+5:30 (UTC+5:30), while Guam uses GMT+10 (UTC+10).
When it's noon in Colombo, what time is it in Guam?
When it's 12:00 PM (noon) in Colombo, it is 4:30 PM in Guam. Use our calculator above to convert any other time.
Does the time difference between Colombo and Guam change?
No. The time difference between Colombo and Guam is always 4.5 hours ahead — neither city observes Daylight Saving Time, so the offset never changes.
What are the best times to schedule a call between Colombo and Guam?
The best time to call is between 9:00 AM and 1:00 PM in Colombo (which is 1:30 PM – 5:30 PM in Guam). This 4-hour window falls within business hours in both cities.
Is Colombo ahead or behind Guam?
Colombo is currently 4.5 hours behind Guam.
What time zone is Colombo in?
Colombo is in the Asia/Colombo time zone, currently using GMT+5:30 (UTC+5:30). Colombo does not observe Daylight Saving Time.
What time is midnight in Colombo in Guam?
When it is midnight (12:00 AM) in Colombo, it is 4:30 AM in Guam.