Time Difference Between Seoul and Colombo
Seoul is 3.5 hours ahead of Colombo. Live local times, working-hour overlap and a 24-hour meeting suitability table, computed from the IANA time zone database in your browser.
Best time to meet
On a normal weekday the two cities share 5.5 hours of overlapping working time: 12:30–18:00 in Seoul, which is 09:00–14:30 in Colombo. That is the window to protect for recurring meetings.
Next 24 hours
Scored against a 09:00–18:00 weekday working day in both cities. Updates live.
| Seoul | Colombo | Suitability |
|---|---|---|
| Loading live table… | ||
Seoul working hours converted to Colombo
| Seoul time | Colombo time |
|---|---|
| 09:00 | 05:30 |
| 10:00 | 06:30 |
| 12:00 | 08:30 |
| 14:00 | 10:30 |
| 16:00 | 12:30 |
| 18:00 | 14:30 |
Based on a 09:00–18:00 working day and today's UTC offsets (UTC+9 and UTC+5:30).
Frequently asked questions
What is the time difference between Seoul and Colombo?
Seoul is 3.5 hours ahead of Colombo: UTC+9 versus UTC+5:30. Both figures include any daylight saving currently in force.
What is the best time to call from Seoul to Colombo?
Aim for 12:30–18:00 in Seoul, which lands at 09:00–14:30 in Colombo. Both sides stay inside a normal working day.
Does the overlap between Seoul and Colombo change during the year?
Yes, whenever the two regions do not switch daylight saving on the same date — or one does not observe it at all. The window above is computed for today's rules; re-check it in the weeks after a clock change.